Готові списки джерел за темами / Fixed prosthodontic

Добірка наукової літератури з теми "Fixed prosthodontic"

Автор: Grafiati
Опубліковано: 14 березня 2023

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Статті в журналах з теми "Fixed prosthodontic"

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Edher, Faraj. "Innovations in fixed prosthodontic workflows." Journal of Prosthetic Dentistry 128, no. 4 (October 2022): 545–47. http://dx.doi.org/10.1016/j.prosdent.2022.09.001.

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Yuzugullu, Bulem, Ozlem Acar, Burcak Kaya, and Muhammet Saka. "Prosthodontic Rehabilitation of Cleft Lip and Palate Patients using Conventional Methods: A Case Series." International Journal of Prosthodontics and Restorative Dentistry 3, no. 3 (2013): 120–24. http://dx.doi.org/10.5005/jp-journals-10019-1090.

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ABSTRACT This case series describes prosthodontic management of seven cleft-lip-and-palate patients with different cleft deformities, gender and age. Patients were rehabilitated using conventional prosthesis. Five patients in whose maxillary arch was orthodontically expanded were treated with a combination of fixed and removable partial dentures with precision attachments. Two patients, who did not maxillary collapse were treated with metal-ceramic fixed-partial-dentures. All patients were followed up to two years. When there are limitations for secondary bone- grafting and implants, conventional approaches provide good physiologic, functional and esthetic outcomes with care taken to prevent maxillary relapse in treating these patients. How to cite this article Acar O, Kaya B, Saka M, Yuzugullu B. Prosthodontic Rehabilitation of Cleft Lip and Palate Patients using Conventional Methods: A Case Series. Int J Prosthodont Restor Dent 2013;3(3):120-124.
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Taylor, Thomas D., Steven A. Aquilino, and Richard D. Jordan. "Prosthodontic laboratory and curriculum survey. Part IV: Fixed prosthodontic curriculum survey." Journal of Prosthetic Dentistry 53, no. 2 (February 1985): 267–70. http://dx.doi.org/10.1016/0022-3913(85)90126-x.

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Diaz-Arnold, Ana M., James T. Dunne, and Aaron H. Jones. "Microhardness of provisional fixed prosthodontic materials." Journal of Prosthetic Dentistry 82, no. 5 (November 1999): 525–28. http://dx.doi.org/10.1016/s0022-3913(99)70050-8.

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Rau, Clayton T., Vilhelm G. Olafsson, Alex J. Delgado, André V. Ritter, and Terry E. Donovan. "The quality of fixed prosthodontic impressions." Journal of the American Dental Association 148, no. 9 (September 2017): 654–60. http://dx.doi.org/10.1016/j.adaj.2017.04.038.

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6

CHRISTENSEN, GORDON J. "Have fixed-prosthodontic impressions become easier?" Journal of the American Dental Association 134, no. 8 (August 2003): 1121–23. http://dx.doi.org/10.14219/jada.archive.2003.0330.

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CHRISTENSEN, GORDON J. "The state of fixed prosthodontic impressions." Journal of the American Dental Association 136, no. 3 (March 2005): 343–46. http://dx.doi.org/10.14219/jada.archive.2005.0175.

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8

Addy, Liam, Matthew Thomas, Carly Cummings, and Elizabeth King. "Removable Prosthodontics for the Management of Severe Toothwear." Dental Update 47, no. 5 (May 2, 2020): 396–404. http://dx.doi.org/10.12968/denu.2020.47.5.396.

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Toothwear is becoming increasingly more common for dentists to manage as the population is maintaining its teeth for longer. A large proportion of cases can be managed by means of adhesive dentistry in conjunction with preventive advice. There are, however, patients with severe toothwear alone, or toothwear in conjunction with missing teeth, which would be best served with a removable prosthodontic approach. This is particularly the case where dental implants are not indicated or appropriate. This article illustrates the use of removable prosthodontics for the management of toothwear and highlights the importance of these restorations in certain cases. It also considers the supportive programme required to ensure success of this treatment modality. CPD/Clinical Relevance: Toothwear is a prevalent dental problem that cannot always be addressed with an adhesive restorative or fixed prosthodontic approach, particularly when the toothwear is severe and or in combination with existing missing teeth.
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Memon, Farzana, Diya Ram Khatri, and Salwa Memon. "PROSTHODONTIC TREATMENT." Professional Medical Journal 25, no. 07 (July 10, 2018): 1034–40. http://dx.doi.org/10.29309/tpmj/2018.25.07.121.

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Objectives: This study was carried out to assess the clinical evaluation of thepreference for prosthodontics treatment modalities in the patients visiting at the Welfare OPD,Isra Dental College, Hyderabad. Study Design: Cross sectional study. Setting: Welfare OPD,Department of Prosthodontics at Isra Dental College, Hyderabad. Period: Six months, from Jan,2016 to June, 2016. Materials and Methods: The study comprised of 191 patients belongingto both genders ranging in age from 10 years to the 60+ years, divided into six groups. Dataanalysis by distribution was performed according to the various kinds of prosthesis, includingremovable partial denture, removable complete denture, fixed partial denture, repair of RPD,immediate denture, lower CD & upper PD, obturator, upper CD & lower PD, relining of dentures,splints, over denture and provisional restorations. Data was analyzed via SPSS version 21.Descriptive statistics such as percentage, frequency distribution, cross tabulation and descriptivewere included in Data analysis. The level of significance was set at <0.05%. Results: This studyrevealed that the most of the patients were fell in group IV (41-50 years), which represents28.3% and the most common treatment were given RPD restoration (49.2%), followed by FPD(22.5%). Majority of the patients were prefer the RPD as 32 (34.0%) and 27 (28.7%) from the agegroup IV and III respectively while 13 (13.8%) patients were prefer RPD and 13 (30.8%) patientswere prefer FPD from the age group II. Out of 191 patients, 47 (50.0%) Males and 47 (50.0%)Females as well prefer the RPD while 26 (60.5%) females and 17 (39.5%) males were preferFPD as treatment modalities. Younger female patients preferred the FPD while with the increaseof age both genders prefer removable prosthesis. Conclusion: This study concludes that inthe treatment modalities, mostly patients preferred the removable partial denture, provisionalrestorations and removable complete denture. Younger patients preferred fixed partial dentureand removable partial denture as well.
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Chokhani, Dishita, and Deepali Patane. "Postgraduate student’s perception on preclinical prosthodontics curricula: A web-based survey." IP Annals of Prosthodontics and Restorative Dentistry 7, no. 4 (December 15, 2021): 200–208. http://dx.doi.org/10.18231/j.aprd.2021.040.

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This study aimed to determine the current background of teaching pre-clinical prosthodontics for post graduate students. It describes the perception of post graduate students regarding the effectiveness of the preclinical prosthodontic curriculum in preparing them to operate efficiently in the clinical setting.: To assess student’s knowledge and perception of preclinical postgraduate prosthodontics course in different dental colleges of India.: The study sample was obtained from 148 postgraduate student, both male and female, an anonymous questionnaire consisting of 15 questions regarding knowledge, attitude and practice of the preclinical curriculum. This research was conducted after getting permission from the respective authority and consent from all respondents. Data acquired from structured questionnaires were analysed and compared by simple percentage method.After careful assessment and graphical representation of responses acquired from participants, results were formulated. Participants expressed through open ended and closed ended questionnaire that exercises conducted for complete denture prostheses and fixed partial denture prostheses were adequate and preclinical curriculum for implantology and maxillofacial prostheses needs to be streamlined.This paper has found that, while all schools make efforts to ensure that their postgraduate dental students are best prepared for subsequent independent practices, prosthodontic education varies among schools. Although some trends in curricular formats and content are evident. This survey indicated that active and passive learning for preclinical prosthodontics and frequent feedback from students plays a vital role.
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Дисертації з теми "Fixed prosthodontic"

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Mchouh, Najibeh Rajab. "The effect of recasting nickel chromium and cobalt chromium alloys on the quality of fixed prosthodontic devices." Thesis, Manchester Metropolitan University, 2015. http://e-space.mmu.ac.uk/593737/.

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Base metal dental alloys are among the oldest restorative dental materials used in dentistry. They are still widely applied and are expected to remain in demand in the coming years. They demonstrate adequate properties required to meet the needs of wide and variable applications. Base metal alloys can be used alone or in combination with other dental materials to construct a dental restoration. Due to environmental and financial factors, variable practices have emerged in the processing of these alloys. Among these practices is the reuse of surplus alloys. The aim of this study was to evaluate the effect of recycling nickel-chromium and cobalt-chromium alloys on the quality of dental restorations employing a suggested test protocol where the correlation between the different factors tested was investigated. Wax patterns of different shapes were prepared for the different tests conducted. For each alloy type, five different combinations of new and surplus alloys were prepared to cast the wax patterns using an induction casting machine. Castings were subjected to different quality assessment investigations; (i) the microstructure was assessed for the presence of pores and inclusions and the chemical composition was evaluated for the amount of elements present (mass%), castings produced from new alloy were used as a control; (ii) castings were subjected to a polishing procedure simulating the technique used in dental laboratories. Surface roughness (Ra) was analysed prior to and after the polishing procedure using light profilometer; (iii) a metal to ceramic bond strength test was conducted following the requirements of ISO 9693: 2000. ISO standardised test pieces were subjected to a three-point bending test using a universal testing machine and bond strength evaluated; and (iv) ions released from castings were measured, where castings were placed into artificial saliva at pH 4 and 6 for five weeks. The mean amounts released were measured using inductively coupled plasma atomic emission spectroscopy (ICP/OES). The findings of this study imply that although microstructure and chemical composition of castings containing surplus alloy varied from those produced entirely from new alloys, these variations were not always significant and depended on the alloy type and restoration type. Surface roughness evaluation suggests that consecutive laboratory procedures, such as finishing and polishing procedures can considerably enhance surface topography of casting produced partially and entirely from surplus alloy. For the bonding test investigation, all test groups demonstrated bond strength values higher than that recommended by ISO 9693: 2000. A similar observation was documented for the ion release test; despite the increase in the amount of ions released from castings containing surplus alloys, the detected amount of ions was however very small compared to those documented in the literature. Although some of the tested characteristics of castings containing 100% recycled alloys were marginally inferior to those produced from new alloy, the former castings gave acceptable results and would be expected to function and perform appropriately in the patient’s mouth in the equivalent manner to castings produced from new alloys. However the addition of a small amount of new alloy, as low as 25%, has been shown to enhance the performance of castings compared to those containing 100% recycled alloy in the different tests conducted.
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Mobilio, Nicola. "The use of lithium disilicate in fixed dental prosthesis: from the adhesive interface to clinical performance." Doctoral thesis, Università di Siena, 2019. http://hdl.handle.net/11365/1071540.

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Chapter 1 is an introduction to lithium disilicate: its glass ceramic nature, its characteristics, its mechanical properties. The possibility to be etched allows lithium disilicate to be adhesively luted on dental tissues, influencing both the final properties of restoration and the clinical protocol of cementation. The aim of this thesis was investigate the adhesive interface between lithium disilicate, resin cement and dental tissues from different points of view: retention, fracture strength and survival rate. In Chapter 2 the retention of lithium disilicate crowns cemented using two different cementation systems was measured. Twenty extracted mandibular premolars were prepared. Anatomic crowns were waxed and hot pressed using lithium disilicate ceramic. Teeth were divided into two groups (n = 10): (1) self- curing luting composite and (2) glass-ionomer cement (GIC). After cementation, the crowns were embedded in acrylic resin block with a screw base. Each specimen was pulled along the path of insertion in Universal Testing Machine. Failure load in Newtons (N) and failure mode were recorded for each specimen. Failure mode was classified as decementation or fracture. Failure load data were analyzed using one-way analysis of variance (ANOVA). Failure modes were compared using Pearson’s Chi-square test. Mean failure load was 306.6(±193.8) N for composite group and 94.7(±48.2) N for GIC group (p = 0.004). Disilicate crown cemented with luting composite most often failed by fracture; otherwise, crown cemented with glass-ionomer cement most often failed by decementation (p = 0.02). Disilicate full crown cemented with luting composite showed higher failure load compared with conventional cementation with glass-ionomer cement. The interface between tooth, luting composite and lithium disilicate surface was also qualitatively evaluated using a scanning electron microscope (SEM). An extracted restoration-free human molar was stored in physiological solution until it was embedded in an autopolimerysing acrylic resin. A standard preparation for onlay was completed and after preparation an anatomic onlay was waxed on the tooth and then hot pressed using lithium disilicate ceramic. After cementation the sample was dissected using an Automatic Micromet (Remet s.a.s) and the section was analyzed using a SEM. SEM evaluation of the tooth showed the three layers seamlessly; by increasing the enlargement the interface did not change. In Chapter 3 the fracture strength of human teeth restored with lithium disilicate onlays, with and without fiber post build-up, was measured. Twenty human mandibular molars were horizontally sectioned and divided into two groups (n = 10). No treatment was applied in group A. Teeth in group B were endodontically treated, built-up using fiber post and composite core and prepared with a circumferential chamfer providing a 1 mm circumferential ferrule. Lithium disilicate onlays were pressed and luted on teeth using dual-curing luting composite. Teeth were tested under static load. Failures were classified as restorable or not restorable. Failure loads were analyzed with ANOVA. Failure modes were compared using Pearson’s Chi-square tests. The mean fracture loads were 1383.5 N for group A and 1286.3 N for group B. No difference was found (p = 0.6). Ninety per cent of fractures were classified as not restorable in both groups, with no difference (p = 0.8). It was concluded that, for teeth restored with adhesive procedures and lithium disilicate onlays, the presence of build-up with fiber post to provide retention and resistance form (as traditionally stated) does not influence the fracture strength. Finally, in Chapter 4, a retrospective study was conducted to assess the clinical performance of lithium disilicate single restorations adhesively cemented on natural teeth. All patients who received lithium disilicate single restorations between 2009 and 2013 at the dental clinic of the University of Ferrara were recalled for clinical evaluation. A total of 43 partial and total restorations in 17 patients were evaluated from a minimum of 36 months follow-up to a maximum of 81 months follow-up, with a mean follow-up of 51 months. The cumulative survival rate was 97.7%, and the cumulative success rate was 94.2%. Lithium disilicate can be successfully used for single-tooth restorations in both anterior and posterior regions, provided that an adhesive luting protocol is applied.
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Näpänkangas, R. (Ritva). "Fixed metal ceramic prostheses:treatment need, complications and survival of conventional fixed prosthodontics." Doctoral thesis, University of Oulu, 2001. http://urn.fi/urn:isbn:9514265408.

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Abstract The aims of this study were to evaluate the treatment need of fixed bridges according to the distribution of pontics in dentition in different age groups, and to investigate the primary and late complications and survival of the conventional fixed metal ceramic prostheses, as well as patients' satisfaction with the prosthetic treatment. The whole material consisted of the patients treated with fixed metal ceramic prostheses by undergraduate students at the Institute of Dentistry during the years 1984 - 1996. There were altogether 772 patients, 460 women (60 %) and 312 men (40 %). Their mean age was 47 years (23 - 81 years). Altogether 944 single metal ceramic crowns and 543 fixed bridges (1374 abutments and 807 pontics) were prepared. It can be concluded that the fixed bridges are most often prepared to replace upper first premolars and lower first molars also in the future. The most usual primary complications related to fixed bridges occurred during preprosthetic endodontic treatment of abutment teeth and during the preparation of the root canals. Previous restoration of the prepared tooth does not have any marked effect on the prognosis of single crowns with dowels, although anatomically complicated upper lateral incisors and upper first premolars need special attention in the treatment planning. Patients were satisfied with aesthetics and function of the fixed metal ceramic prostheses. Late complications found in clinical examinations were few, and the survival rate for the fixed metal ceramic bridge prostheses was calculated to be 84 % after 10 years, long fixed bridges having a lower survival than the shorter ones. The treatment need for conventional fixed bridges seems to be highest among patients over 50 years of age in the future. Age does not influence the longevity of the fixed prostheses, but basic circumstances of the mouth, especially low secretion of saliva affected by diseases and/or medications and high scores of lactobacilli and streptococcus mutans of the saliva seem to decrease the survival.
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Alsadon, Omar. "Evaluating PolyEtherKetoneKetone (PEKK) polymer used for fabricating fixed prosthodontics." Thesis, University of Sheffield, 2017. http://etheses.whiterose.ac.uk/17181/.

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Dental alloys, and later zirconia, have been used in dentistry as frameworks for many years in making crowns and bridges veneered with ceramic e.g. feldspathic porcelain. Such methods of restoring teeth have been extensively studied both in the laboratory and clinically. Although such substructures have excellent strength there remains a large properties mismatch between these materials and bone or dentine e.g. elasticity. Furthermore, other drawbacks have been documented such as possible allergies, colouring of alloy margins, veneer chipping and excessive wear to opposing natural dentition. Polyaryletherketone (PAEK) thermoplastic biomaterial polymers such as polyetheretherketone (PEEK) and polyetherketoneketone (PEKK) have been successfully applied in different medical applications with the latter recently being introduced to dentistry as a restorative material. The material is called Pekkton® ivory (Cendres+Métaux, SA, Switzerland) and is proposed to be used for fabricating both monolithic and bi-layered structures veneered with indirect composite resin. The manufacturer recommends methods similar to well-established restorations such as alloy and ceramic based crowns which makes it a user friendly material for both dental clinics and laboratories. Furthermore, the material’s properties such as high strength, low elastic modulus close to that of dentine, high temperature, chemical, hydrolysis and wear resistance, makes it a promising material for the replacement of tooth material. There is little published data about this material and hence the aim of this research was to evaluate the manufacturing process, aesthetic properties, structural integrity and durability of bi-layered crowns made from PEKK based thermoplastic high performance polymer (Pekkton® ivory, Cendres+Métaux, SA) and veneered with indirect light cured composite (Vita VM LC, VITA Zahnfabrik H. Rauter GmbH & Co.KG, DE). The processing route for Pekkton® ivory is either via milling or hot-pressing and the procedures were compared. The polymer-based restoration was compared to equivalent zirconia and metal based bi-layered restoration systems veneered with either light cured composite resin or feldspathic porcelain. Optical properties of each crown system were compared using a UV and visible light spectrophotometer. Structural integrity was compared for each system by testing the fracture resistance of the crowns using a universal testing machine and durability was evaluated by testing the fatigue limit and fatigue life using a fatigue chewing apparatus. The research hypothesis is that the PEKK polymer as anunderlying substructure material will perform equivalently to metal and zirconia substructures when veneered with light cured composite in the aspects of optical properties, strength and durability. The outcome of the study established a pressing protocol for PEKK using a standard ceramic pressing furnace where the pressed samples showed no significant differences in the CIEL*a*b* colour values, hardness or biaxial flexural strength to those samples produced via milling. There was no significant optical difference between the systems compared, the study found no evidence of difference in the CIEL*a*b* colour value of PEKK, zirconia or metal based samples when veneered with the same composite veneer. However, zirconia based groups displayed greater translucency with the composite veneer and feldspathic porcelain veneer. The fracture resistance of the PEKK and metal composite veneered crowns showed to be comparable, whereas zirconia based crowns demonstrated significantly lower fracture resistance. The durability of the PEKK composite veneered crowns showed the highest fatigue limit in comparison to the zirconia and metal composite veneered crowns. Similarly they showed the highest survival rate in the fatigue life assessment under the same cyclic load. Furthermore, the fracture mode was significantly different than observed with the zirconia and metal based crowns. The conclusion was that this material is promising for use as a restorative material and that clinical evaluation should be undertaken.
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Almansour, Haitham. "The development of titanium/zirconia composites using powder metallurgy technology for fixed prosthodontics." Thesis, University of Sheffield, 2015. http://etheses.whiterose.ac.uk/8437/.

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Pihlaja, J. (Juha). "Treatment outcome of zirconia single crowns and fixed dental prostheses." Doctoral thesis, Oulun yliopisto, 2016. http://urn.fi/urn:isbn:9789526212029.

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Abstract Metal ceramic restorations have been used in fixed prosthodontics since the 1950s, but the lack of aesthetics, the inclination to use metal-free materials, possible allergic reactions to metals, and the high cost of high noble alloys have increased the use of all-ceramic materials. The ongoing development of ceramic materials led to the introduction of zirconia to fixed prosthodontics over a decade ago. The mechanical properties of zirconia have proven to be excellent, but the clinical outcome of conventional fixed zirconia restorations over the long term is unclear. This retrospective clinical study evaluated two- to seven-year outcomes, early complications during prosthetic treatment and short-term failures during the first year of use of zirconia single crowns and fixed dental prostheses (FDPs). The usefulness and durability of zirconia single crowns in abutment teeth of partial removable dental prostheses (RDPs) was also evaluated. The material consisted of 173 patients treated with zirconia single crowns or FDPs by undergraduate dental students between 2007 and 2010. Of these patients 94 were women and 79 men (mean age 55 years, range 18–79 years). Altogether 268 zirconia single crowns (mean 3 crowns, range 1–12 crowns per patient) had been fabricated for 88 patients and 120 zirconia FDPs (range 3–12 units, mean 4.5 units) for 102 patients. Seventeen patients had received both crown(s) and FDP(s). The results show that zirconia single crowns and FDPs are a suitable treatment alternative in fixed prosthodontics. Early complications during prosthetic treatment and short-term failures during the first year of use were few. The survival rate of the zirconia single crowns after 3.9 years (2–6 years) was 89% and the success rate was 80%. The survival rate of zirconia FDPs after 4.9 years (3–7 years) was 100% and the success rate was 89%. Zirconia single crowns perform well as abutment teeth of partial RDPs with a metal framework, but fractures in the veneering porcelain remain a problem
Tiivistelmä Metallokeraamisia rakenteita on käytetty kiinteässä protetiikassa 1950-luvulta lähtien, mutta puutteet estetiikassa, pyrkimys metallittomiin materiaaleihin, mahdolliset allergiset reaktiot ja jalojen metallien korkea hinta ovat lisänneet kokokeraamisten materiaalien käyttöä. Kokokeraamisten materiaalien kehitystyö on tuonut zirkonian kiinteän protetiikan materiaaliksi. Zirkonian mekaaniset ominaisuudet ovat osoittautuneet erinomaisiksi, mutta hammaskantoisten kiinteiden zirkonia-runkoisten proteesien kliiniset pitkäaikaistulokset puuttuvat. Tämän retrospektiivisen kliinisen tutkimuksen tarkoituksena oli selvittää zirkonia-runkoisten yksittäisten kruunujen ja zirkonia-runkoisten siltojen menestymistä 2–7 vuoden aikavälillä sekä kartoittaa niiden valmistuksen aikaiset ongelmat ja varhaiset epäonnistumiset ensimmäisen vuoden aikana. Lisäksi tutkittiin zirkonia-runkoisten yksittäisten kruunujen käyttökelpoisuutta ja kestävyyttä metallirunkoisten rankaproteesien tukihampaina. Materiaali koostui 173 potilaasta, joille hammaslääketieteen opiskelijat olivat tehneet zirkonia-runkoisia yksittäisiä kruunuja tai zirkonia-runkoisia siltoja vuosina 2007–2010. Potilaista 94 oli naisia ja 79 miehiä (keski-ikä 55 vuotta, jakauma 18–79 vuotta). Kaiken kaikkiaan 268 zirkonia-kruunua (keskimäärin 3 kruunua, jakauma 1–12 kruunua potilasta kohti) oli valmistettu 88 potilaalle ja 120 siltaa (keskimäärin 4,5 yksikköä, jakauma 4,5 yksikköä) 102 potilaalle. Seitsemälletoista potilaalle oli tehty sekä kruunuja että siltoja. Tulokset osoittavat, että zirkonia-runkoiset kruunut ja sillat ovat käyttökelpoisia kiinteässä protetiikassa. Valmistuksenaikaiset ongelmat ja varhaiset epäonnistumiset ovat vähäisiä. Yksittäisten kruunujen selviytymisprosentti 3,9 vuoden jälkeen (2–6 vuotta) oli 89 % ja onnistumis-prosentti 80 %. Siltojen selviytymisprosentti 4,9 vuoden jälkeen (3–7 vuotta) oli 100 % ja onnistumisprosentti 89 %. Zirkonia-runkoiset kruunut toimivat hyvin rankojen tukihampaina, mutta niiden ongelmana ovat päällepolttoposliinin lohkeamat
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Kelly, Philip G. "Long-term survival and cost-effectiveness of fixed prostheses in continuously attending patients at three private dental practices /." Title page, contents and summary only, 1998. http://web4.library.adelaide.edu.au/theses/09DM/09dmk29.pdf.

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Aziz, Aziz Ghanim Aziz. "The effect of Artificial Aging (LTD) on the mechanical and optical properties of conventional and translucent zirconia for fixed prosthodontics." Thesis, University of Leeds, 2018. http://etheses.whiterose.ac.uk/20790/.

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Анотація:
In the last two decades, zirconia has been of a great interest to dentists due to its superb mechanical and optical properties. At first, the use of zirconia was limited to fabrication of cores replacing the metal in crown construction. Nowadays, there is an increase in the trend of using monolithic ‘full contour’ translucent zirconia to overcome the problem of chipping of porcelain veneers and to overcome the limitation of using lithium disilicate in long span replacement. This has brought zirconia in direct contact with saliva and oral fluids and introduced the possibility of the material undergoing low temperature degradation. This study aimed to investigate the effect of accelerated hydrothermal aging on the mechanical and optical properties of two conventional core and two full contour translucent zirconia materials, expected to be used by 90% of zirconia manufacturers globally. Hydrothermal aging was carried out using an autoclave to simulate in vivo aging, using a specific protocol proposed by ISO 13356:2015 mimicking 15- 20 years of clinical service of the material. Each of the four materials were tested before and after aging, including structural analysis which was carried out using XRD, SEM, FIB-SEM and AFM. Mechanical property investigations were carried out by measuring BFS and Vickers hardness. Optical properties were thoroughly investigated through measuring a range of translucency parameters and changes in colour before and after aging. The results of this study showed that conventional core materials were less affected by hydrothermal aging in comparison to full contour translucent zirconia in terms of optical properties. All of the used materials showed clear colour changes after aging, however none of them showed significant changes in the mechanical properties even with more than 20% of t →m phase transformation in one of the translucent zirconia materials. Within the limitation of this in vitro study, it can be concluded that full contour translucent zirconia can be used clinically with no concern about its mechanical and optical properties, however, further studies on the perception and acceptability for changes in the optical properties would be highly recommended.
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Costa, Anna Karina Figueiredo [UNESP]. "Comportamento biomecânico de estruturas multicamadas em restaurações protéticas." Universidade Estadual Paulista (UNESP), 2016. http://hdl.handle.net/11449/138191.

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
O objetivo desse trabalho foi identificar por meio da utilização de geometrias complexas (pela análise de elemento finito) e simplificadas, se novas tecnologias (sistema CAD/CAM) resultam em um comportamento biomecânico mais favorável na cerâmica de cobertura quando comparado à técnica de aplicação convencional (estratificação). Foram modelados três diferentes estruturas de prótese parcial fixa de três elementos com diferentes técnicas de fabricação: convencional, Rapid Layer (feldspática, cimento resinoso e zircônia) e CAD-on (dissilicato, material vítrio de baixa fusão e zircônia) a fim de analisar a distribuição tensão de tração gerada durante um ensaio mecânico pelo método por elementos finitos. Discos (cerâmica de cobertura e zircônia) foram unidos seguindo as três diferentes técnicas (convencional, Rapid Layer e CAD-on). Foram também confeccionadas próteses parciais fixas de 3 elementos pela técnica de multicamada seguindo as mesmas configurações dos modelos utilizados na análise por elementos finitos. Essas coroas foram cicladas durante 2x106 ciclos para analisar falhas na cerâmica de cobertura, como trincas, lascamento, delaminação e falha catastrófica. Os resultados mostraram que as coroas confeccionadas com cerâmica de dissilicato de lítio e material vítreo na interface infraestrutura/cerâmica de cobertura apresentaram menor concentração de tensão de tração quando comparadas aos modelos confeccionados pela técnica convencional, que demonstraram maior concentração de tensão de tração entre as camadas (cerâmica de cobertura, interface e infraestrutura). Para os discos, o acréscimo de material na interface cerâmica de cobertura e infraestrutura mostrou maior resistência à fratura biaxial e menor propagação da trinca entre as camadas de cerâmica. As coroas cicladas não apresentaram falhas como: trincas, lascamento, delaminação e catastrófica nos primeiros 500.000 ciclos. Porém, as próteses confeccionadas com cerâmica feldspática apresentaram trincas a partir de 1x106 ciclos, diferentemente das coroas confeccionadas na técnica Rapid Layer e CAD-on. As coroas confeccionadas pela técnica RL e CAD-on podem ser consideradas um sistema favorável por prevenir a propagação de trincas radiais em direção à superfície da restauração e melhorar a tenacidade à fratura do material.
The aim was to identify whether the CAD/CAM approach resulted in more favourable stressing patterns in the veneer-ceramic when compared with a conventionally sintered Y-TZP core/veneer-ceramic. Three different designs crowns of prosthesis with three elements and different manufacturing techniques were modeled: conventional technique, Rapid Layer (feldspathic ceramic, resin cement and zirconia) and CAD-on (disilicate, fusion glass ceramic and zirconia) techniques to analyze the distribution stress tensile generated during a mechanical test by the finite element method. Moreover, were made feldspathic ceramic discs, lithium disilicate discs and Y-TZP zirconia discs to analyze the influence of biaxial flexure stress of these three different techniques. These discs (veneer ceramic and zirconia ceramic) were joined following the three different techniques (conventional, Rapid Layer and CAD-on). They were also made FPDs 3 elements: following the same design of models used in finite element analysis. These crowns were cycled during 2x106 cycles to analyze failure at veneer ceramic, such as cracks, chipping, delamination and catastrophic failure. The results showed that the crowns made from ceramic lithium disilicate and low fusion glass ceramic at the interface veneer ceramic/infraestructure showed low concentration of tensile stress when compared to models made by the conventional technique, which showed a greater concentration of tensile stress between layers (veneer ceramic, interface and infrastructure). For the discs samples, the multilayer materials showed lower crack propagation between the ceramic layers. The cycled crowns showed no failure as cracks, chipping, delamination and catastrophic failure for the first 500,000 cycles. However, the prostheses made with feldspathic ceramic showed cracks from 1.106 cycles. The incorporation of functionally and aesthetically graded layers would be realisable, considerable research would be required before the feasibility of the conceptual approach could be accurately assessed.
FAPESP: 2012/11095-0
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Wu, Yi-Jiin, and 吳怡瑾. "The case reports of full mouth rehabilitation in perio-prosthodontic treatment - Full mouth rehabilitaion with implants supporting fixed prosthesis and implans and teeth supporting konus telescopic system." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/38952390120736216415.

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碩士
高雄醫學大學
牙醫學研究所碩士在職專班
99
Patients with periodontitis often suffered from destruction of periodontal tissue, which leads to the pathological displacement or inclination of teeth. If combined with partial loss of teeth or loss of periodontal support, this situation will easily result in bite collapse. In addition to eradication of etiologies of periodontal destruction and reconstruction of the occlusal function, conditions of remaining teeth and maintenance of pateints’ oral hygiene should be brought in consideration. Therefore, the evaluation prior to treatment, the integration and intervention of different specialties, and the expectancy of the patient should all be prudently contemplated. In the present study of 9 cases, under cross-field full-treatment, with the use of dental implants to increase the periodontal support, selection of various periodontoal surgeries to improve the health of periodontium, provision of different designs of prostheses to stabilize occlusion and relieve trauma from occlusion, and with the help of orthodontic intervention to the meet the esthetic request, we can then step further to reach the goal of full-mouth rehabilitation. Besides, however, the periodically follow-ups and the maintenance of oral hygiene of the patients are the keys to promote the success rates of our treatments.
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Книги з теми "Fixed prosthodontic"

1

F, Land Martin, and Fujimoto Junhei, eds. Contemporary fixed prosthodontics. 2nd ed. St. Louis: Mosby, 1995.

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F, Land Martin, and Fujimoto Junhei, eds. Contemporary fixed prosthodontics. 3rd ed. St. Louis: Mosby, 2001.

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3

F, Bowley John, and Stockstill John W, eds. Comprehensive fixed prosthodontics. Philadelphia: Saunders, 1992.

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4

F, Rosenstiel Stephen, Land Martin F, and Fujimoto Junhei, eds. Contemporary fixed prosthodontics. 4th ed. St. Louis: Mosby Elsevier, 2006.

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5

Rosenstiel, Stephen F. Contemporary fixed prosthodontics. St. Louis: Mosby, 1988.

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6

Fundamentals of fixed prosthodontics. 4th ed. Hanover Park, IL: Quintessence Pub., 2012.

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7

Barclay, C. Fixed and removable prosthodontics. 2nd ed. Edinburgh: Churchill Livingstone, 1998.

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8

Chiche, Gerard J. Esthetics of anterior fixed prosthodontics. Chicago: Quintessence Pub. Co., 1994.

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9

Wiskott, H. W. Aselm. Fixed prosthodontics: Principles and clinics. London: Quintessence Publishing, 2011.

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10

Johnston, John F. Johnston's Modern practice in fixed prosthodontics. 4th ed. Philadelphia: Saunders, 1986.

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Частини книг з теми "Fixed prosthodontic"

1

Bidra, Avinash S. "Fixed Prosthodontic Rehabilitation in a Wear Patient With Fabry's Disease." In Journal of Prosthodontics on Complex Restorations, 45–52. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2016. http://dx.doi.org/10.1002/9781119274605.ch7.

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Dedi, Konstantina Dina. "Fixed Prosthodontics." In BDJ Clinician’s Guides, 213–29. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-86110-0_16.

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3

Holloway, Julie. "Digital Fixed Prosthodontics." In Clinical Applications of Digital Dental Technology, 75–106. Chichester, UK: John Wiley & Sons, Inc, 2015. http://dx.doi.org/10.1002/9781119045564.ch5.

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4

Guazzato, Max, Robert Santosa, and Johnson P. Y. Chou. "Provisionalisation in Fixed Prosthodontics." In Oral Rehabilitation, 53–60. West Sussex, UK: John Wiley & Sons, Ltd., 2013. http://dx.doi.org/10.1002/9781118702888.ch7.

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5

Scheller-Sheridan, Carmen. "Instruments Used in Removable and Fixed Prosthodontics." In Basic Guide to Dental Instruments, 271–87. West Sussex, UK: John Wiley & Sons, Ltd., 2013. http://dx.doi.org/10.1002/9781118713563.ch18.

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6

Jahangiri, Leila, Marjan Moghadam, Mijin Choi, and Michael Ferguson. "Full Mouth Rehabilitation-Implant-Supported, Cementable Fixed Prostheses." In Clinical Cases in Prosthodontics, 205–10. Ames, Iowa USA: Blackwell Publishing Ltd., 2013. http://dx.doi.org/10.1002/9781118786864.ch31.

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7

Jahangiri, Leila, Marjan Moghadam, Mijin Choi, and Michael Ferguson. "Treatment of a Patient with Implant-Supported Fixed Complete Denture Prostheses." In Clinical Cases in Prosthodontics, 179–83. Ames, Iowa USA: Blackwell Publishing Ltd., 2013. http://dx.doi.org/10.1002/9781118786864.ch27.

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Jahangiri, Leila, Marjan Moghadam, Mijin Choi, and Michael Ferguson. "Full Mouth Rehabilitation-Combination of Implant and Tooth-Supported Fixed Prostheses." In Clinical Cases in Prosthodontics, 211–16. Ames, Iowa USA: Blackwell Publishing Ltd., 2013. http://dx.doi.org/10.1002/9781118786864.ch32.

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Jahangiri, Leila, Marjan Moghadam, Mijin Choi, and Michael Ferguson. "Treatment of a Partially Edentulous Patient with Fixed and Removable Prostheses." In Clinical Cases in Prosthodontics, 45–51. Ames, Iowa USA: Blackwell Publishing Ltd., 2013. http://dx.doi.org/10.1002/9781118786864.ch7.

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Jahangiri, Leila, Marjan Moghadam, Mijin Choi, and Michael Ferguson. "Full Mouth Rehabilitation-Combination of Implant and Tooth-Supported Fixed and Removable Prostheses." In Clinical Cases in Prosthodontics, 217–22. Ames, Iowa USA: Blackwell Publishing Ltd., 2013. http://dx.doi.org/10.1002/9781118786864.ch33.

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Тези доповідей конференцій з теми "Fixed prosthodontic"

1

Dayan, Çağatay, and Burim Kiseri. "Flexural Strength of Provisional Restorative Materials for Fixed Prosthodontics." In University for Business and Technology International Conference. Pristina, Kosovo: University for Business and Technology, 2018. http://dx.doi.org/10.33107/ubt-ic.2018.360.

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