Relevant bibliographies by topics / Deciduous anchorage

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Academic literature on the topic 'Deciduous anchorage'

Author: Grafiati
Published: 14 March 2023

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Journal articles on the topic "Deciduous anchorage"

1

Consolaro, Alberto. "Orthodontic movement in deciduous teeth." Dental Press Journal of Orthodontics 20, no. 2 (April 2015): 16–19. http://dx.doi.org/10.1590/2176-9451.20.2.016-019.oin.

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Deciduous teeth exfoliate as a result of apoptosis induced by cementoblasts, a process that reveals the mineralized portion of the root while attracting clasts. Root resorption in deciduous teeth is slow due to lack of mediators necessary to speed it up; however, it accelerates and spreads in one single direction whenever a permanent tooth pericoronal follicle, rich in epithelial growth factor (EGF), or other bone resorption mediators come near. The latter are responsible for bone resorption during eruption, and deciduous teeth root resorption and exfoliation. Should deciduous teeth be subjected to orthodontic movement or anchorage, mediators local levels will increase. Thus, one should be fully aware that root resorption in deciduous teeth will speed up and exfoliation will early occur. Treatment planning involving deciduous teeth orthodontic movement and/or anchorage should consider: Are clinical benefits relevant enough as to be worth the risk of undergoing early inconvenient root resorption?
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2

Tocci, Luís Fernando Castaldi, Omar Gabriel da Silva Filho, Acácio Fuziy, and José Roberto Pereira Lauris. "Influence of intentional ankylosis of deciduous canines to reinforce the anchorage for maxillary protraction." Dental Press Journal of Orthodontics 18, no. 1 (February 2013): 94–102. http://dx.doi.org/10.1590/s2176-94512013000100020.

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INTRODUCTION: This retrospective cephalometric study analyzed the influence of intentional ankylosis of deciduous canines in patients with Class III malocclusion and anterior crossbite, in the deciduous and early mixed dentition stages, treated by orthopedic maxillary expansion followed by maxillary protraction. METHODS: Lateral cephalograms of 40 patients were used, divided in 2 groups paired for age and gender. The Ankylosis Group was composed of 20 patients (10 boys and 10 girls) treated with induced ankylosis and presenting initial and final mean ages of 7 years 4 months and 8 years 3 months, respectively, with a mean period of maxillary protraction of 11 months. The Control Group comprised 20 patients (10 boys and 10 girls) treated without induced ankylosis, with initial and final mean ages of 7 years 8 months and 8 years 7 months, respectively, with a mean period of maxillary protraction of 11 months. Two-way analysis of variance and covariance analysis were applied to compare the initial and final cephalometric variables and the treatment changes between groups. RESULTS: According to the results, the variables evidencing the significant treatment changes between groups confirmed that the intentional ankylosis enhanced the sagittal response of the apical bases (Pg-NPerp) and increased the facial convexity angles (NAP and ANB). CONCLUSIONS: The protocol involving intentional ankylosis of deciduous canines enhanced the sagittal response of the apical bases.
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Baik, Un-Bong. "Molar Protraction and Uprighting (2nd Molar Protraction in the 1st Molar Missing Site and Uprighting an Impacted 3rd Molar)." APOS Trends in Orthodontics 8 (June 1, 2018): 57–63. http://dx.doi.org/10.4103/apos.apos_29_18.

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Recently, with the help of TADs (temporary anchorage devices), substantial 2nd molar protraction has become possible in case of missing posterior teeth. Total 260 cases of U-6 (Upper 1st molar missing), L-6 (Lower 1st molar missing) and L-E (Lower E extraction with the 2nd molar missing, E: deciduous 2nd molar) were finished. After 2nd molar protraction, even a horizontally-impacted 3rd molar can be uprighted. This treatment will become very good treatment modality, replacing implants and bridges in cases of missing posterior teeth.
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4

Kinzinger, Gero S. M., Ulrich Gross, Ulrike B. Fritz, and Peter R. Diedrich. "Anchorage quality of deciduous molars versus premolars for molar distalization with a pendulum appliance." American Journal of Orthodontics and Dentofacial Orthopedics 127, no. 3 (March 2005): 314–23. http://dx.doi.org/10.1016/j.ajodo.2004.09.014.

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5

Hasan Sabah Hasan, Ahmed Mohammed Samy Ahmed Said Ahmed Eysa, Mostafa Fathy Anwar Mahmoud, and Mohamed A. Elkolaly. "Expanding the concept of orthodontic camouflage for a skeletal Class II camouflage case through the use of skeletal anchorage system." International Journal of Orthodontic Rehabilitation 13, no. 2 (June 10, 2022): 64–74. http://dx.doi.org/10.56501/intjorthodrehabil.v13i2.200.

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This study aimed to report the treatment steps in a 26-year male patient, presented with a class II div 1 incisor relationship on a class II skeletal base with increased vertical proportions. The case was complicated by missing lower second premolars and retained lower second deciduous molars. Severe crowding was evident in the lower arch with mild crowding in the upper arch. The overbite and the overjet were increased. Scissor bite was evident in the left buccal segment. Treatment involved extraction of upper first premolars and lower second deciduous molars, utilizing moderate anchorage using a preadjusted edgewise fixed appliance (0.022’’ X 0.028”) with Roth prescription. Treatment duration was 20 months in total. The envelope of discrepancy specifies strict rules when camouflaging class II cases. The ability to retract incisors and the use of class II mechanics are within limited range to avoid damage to the periodontium. The current case report showed that the ability of the clinician to retract incisors using TADs could be carried out with high rate of success and safety.
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Mutinelli, Sabrina, and Mauro Cozzani. "Rapid maxillary expansion in contemporary orthodontic literature." APOS Trends in Orthodontics 6 (May 30, 2016): 129–36. http://dx.doi.org/10.4103/2321-1407.183148.

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We have reviewed our retrospective research about rapid maxillary expansion performed in the early mixed dentition to summarize the results of different studies regarding maxillary dental arch width variation and crowding improvement in light of contemporary literature. The aim is to define the effects of treatments followed until the end of dental arch growth. In all studies, a Haas expander anchored to the deciduous dentition was used. The samples consisted of treated patients with and without a lateral crossbite and homogeneous untreated individuals as controls. Two additional control groups of adolescents and adults in dental Class 1 were also compared. As a result of the analysis, rapid maxillary expansion with anchorage to the deciduous dentition was found to be effective in increasing transverse width in intermolar and intercanine areas, and the change was preserved until the full permanent dentition stage. When performed before maxillary lateral incisors have fully erupted, this procedure allows for a rapid increase in the arch length in the anterior area and consequently, in the space available for permanent incisors with a stable reduction in crowding over time.
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7

Hakim, Mohamed Ahmed Abdel, Nagwa Mohamed Ali Khatab, Kareem Maher Gaber Mohamed, and Ahmad Abdel Hamid Elheeny. "A Comparative Three-Dimensional Finite Element Study of Two Space Regainers in the Mixed Dentition Stage." European Journal of Dentistry 14, no. 01 (February 2020): 107–14. http://dx.doi.org/10.1055/s-0040-1702254.

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Abstract Objectives This study aims to compare the stress distribution and displacement that resulted from the use of a Gerber space regainer and sagittal distalizer using three-dimensional finite element analysis. Materials and Methods Three-dimensional simulated models of the appliances were developed using a software. The forces applied by the two appliances were 3N (tipping) and 15N (bodily), respectively. Displacement and von Mises stress on the compact and cancellous bone, periodontal ligament (PDL), crowns of the mandibular first, second permanent molars, and deciduous canines were calculated. Stress distribution and displacement values were measured via linear static analysis. Results Gerber space regainer showed greater displacement than that produced by the sagittal distalizer at the first permanent molar. However, such displacement was less at the other tested points when compared with that delivered by sagittal distalizer. The stresses created by Gerber appliance were higher in the crown and PDL of the deciduous canine than the crown of the first permanent molar crown. Conclusions Gerber appliance generates more distal force and less stress concentration on the crown of the mandibular first permanent molar than that created by the sagittal distalizer. On the other hand, stress concentrations produced by Gerber space regainer are found to be more on the crown and PDL of the deciduous canine. Therefore, it can be concluded that the use of Gerber appliance needs more anchorage.
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8

Serafin, Marco, Luca Esposito, Viviana Conti, Rosamaria Fastuca, Manuel Lagravère, and Alberto Caprioglio. "CBCT Comparison of Dentoskeletal Effects of Haas-Type and Hyrax-Type Expanders Using Deciduous Teeth as Anchorage: A Randomized Clinical Trial." Applied Sciences 11, no. 15 (July 31, 2021): 7110. http://dx.doi.org/10.3390/app11157110.

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The aim of this study was to compare the three-dimensional dentoskeletal effects of Haas-type and Hyrax-type expanders using primary teeth as anchorage for rapid palatal expansion (RPE). Thirty-four subjects in mixed dentition were divided according to their expander’s type: Hyrax (n = 16; 6F, 10M; mean age 8 ± 3 years) or Haas (n = 18; 14F, 4M; mean age 8 ± 2 years). Each patient underwent CBCTs before (T0) and after RPE (T1). Dentoskeletal changes were collected. A paired sample t-test and independent t-test were used to compare each variable within the same group and between groups, respectively, with a 5% significance. The Hyrax group showed an increase in all dentoskeletal parameters; skeletal expansion was significantly increased anteriorly (1.76 mm) and posteriorly (1.93 mm). The greatest dental expansion was observed in the anchorage unit (6.47 mm), about twice as much as permanent molars (3.42 mm). The same statistical significance of Haas group measurements was observed; anteriorly skeletal expansion (2.97 mm) was greater than posteriorly (1.93 mm) and dental expansion was greater on anchored teeth (6.80 mm) than non-anchored teeth (4.57 mm). No statistical significance was observed between Hyrax and Hass groups. CBCT analysis showed that, in RPE, the dental expansion was greater than skeletal expansion. No significant or clinical changes were observed between Hyrax and Haas appliances anchored to primary teeth.
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Urbaniak-Malinowska, Gabriela, Marta Gibas-Stanek, Stephen Williams, and Bartłomiej Loster. "Dental and skeletal changes after intra-oral molar distalization using a “Distal Driver” appliance: a pilot study." Journal of Stomatology 69, no. 6 (December 31, 2016): 695–711. http://dx.doi.org/10.5604/00114553.1230590.

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Introduction. Loss of space in the maxillary arch is a frequent consequence of early loss of deciduous molars indicating distalisation of the mesialised molar tooth. A number of methods using either extra-oral appliances or intra oral appliances of various types have been suggested. While extra-oral appliances exert a high but intermittent force many of the intraoral ones deliver a modest, though constant, force and demands no patient cooperation. Aim of study. To investigate the effect of an intra-oral fixed appliance (Distal Driver) based on a NiTi spring incorporating also a standardised anchorage unit on the position of the maxillary first molar as well as on the facial skeleton and the dentition in general. Material and methods. The experimental group comprised 6 child patients exhibiting a distal molar relationship (Unilateral or Bilateral) of at least ½ premolar unit. The mesialised molars were distalised by means of a “Distal driver” exerting a force of 150 gm for a period of 3-4 weeks. Anchorage was created by a fixed modified palatal bar cemented on the premolars supporting an acrylic palatal button ad modum Nance. The clinical situation was recorded before and after molar distalisation by means of study casts, cephalograms, panoramic radiographs as well as intra-oral photographs. The distalisation of the molars as well as the effect on anchorage teeth was quantitated on digital models derived from the plaster casts. Evaluation of the observed distal and vertical changes in molar position was performed on the lateral cephalogram. Results. Cast analysis showed a clear distalising effect on the maxillary first molars ranging from 1.25 mm to 6.18 mm as well as mesial movement of the premolar anchorage teeth from 0.46 mm to 5.55mm. The cephalometric analysis revealed a first molar distalisation of 0.9 mm to 5.6 mm though again with a mesial movement of the first premolar varying from 0.5 mm to 3.7 mm. A clear distal tipping of the first and second molars simultaneously with a mesial tipping of the first premolars was also recorded. Conclusion. The Distal Driver constitutes an efficient method of maxillary molar distalisation though is often accompanied by a distal rotation of these teeth and a mesial tipping of the anchorage premolars. Careful monitoring of anchorage loss is necessary if good results are to be achieved.
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10

Serafin, Marco, Rosamaria Fastuca, and Alberto Caprioglio. "CBCT Analysis of Dento-Skeletal Changes after Rapid versus Slow Maxillary Expansion on Deciduous Teeth: A Randomized Clinical Trial." Journal of Clinical Medicine 11, no. 16 (August 20, 2022): 4887. http://dx.doi.org/10.3390/jcm11164887.

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The aim of the present study was to compare skeletal and dental changes after rapid maxillary expansion (RME) and slow maxillary expansion (SME) performed by a Leaf Expander (LE) with upper deciduous teeth as anchorage and using 3D CBCT (Cone Beam Computed Tomography) analysis. Mixed dentition patients were randomly divided in two groups, according to the different expansion used anchored on maxillary primary second molars: the RME group (n = 16) was treated with a Hyrax type expander, whereas the SME group (n = 16) was treated with an LE expander. CBCT scans were performed before (T1) and after treatment (T2) and analyzed with a custom landmarks system. A paired t-test was used for intragroup analysis between T1 and T2, and a Student t-test was used for intergroup analysis; statistical significance was set at 0.05. Both RME and SME groups showed a statistically significant increase in dental and skeletal diameters. Group comparisons between T1 and T2 showed a significant expansion rate in the RME group for upper permanent molars (p = 0.025) but not for deciduous molars (p = 0.790). Moreover, RME showed higher increases for skeletal expansion evaluated at nasal walls (p = 0.041), whereas at pterygoid plates did not show any significant differences compared with the SME group (p = 0.849). A significant transverse expansion could be achieved with the expander anchored on deciduous teeth. RME and SME produced effective both skeletal and dentoalveolar transverse expansion; RME produced more anterior expansion than SME but less control regarding the permanent molar decompensation. SME by LE therefore could be an efficient and helpful alternative in the treatment of transverse maxillary deficiency in growing patients.
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Dissertations / Theses on the topic "Deciduous anchorage"

1

DI, VECE LUCA. "A study into the clinical effects of the rapid palatal expansion." Doctoral thesis, Università di Siena, 2017. http://hdl.handle.net/11365/1022996.

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This thesis contains different studies on the effects of the rapid palatal expansion.The purpose of this thesis is to investigate some of the effects of palatal expansion which are still unaddressed in literature. The first part of the thesis, after a brief introduction to the transverse maxillary contraction and palatal expansion, will outline the results of clinical trials that relate to the non-orthodontic effects that palatal expansion may have on: cervical vertebrae, posture and upper airways.The second part will show the first results, from an orthodontical point of view, of a multicentric randomized clinical trial designed to analyze the possible different effects of palatal expander anchored on deciduous or permanent teeth.
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