Mandibular changes associated with maxillary impaction and molar intrusion

Abuzinada, Sondos; Alsulaimani, Fahad F.

doi:10.4236/ojst.2013.39085

Cited by 5 publications

(3 citation statements)

References 14 publications

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“…1,3 Regardless of origin, treatment of AOB is accompanied by changes in the occlusal plane and subsequent autorotation of the mandible. 4,5 Surgical and nonsurgical approaches have been introduced for the correction of AOB, and similar relapse rates (approximately 21% to 23%) have been reported. 6,7 In conventional surgical approaches, the maxillary posterior segment is impacted to resolve AOB and to enhance facial esthetics.…”

Section: Introductionmentioning

confidence: 79%

Prediction of mandibular movement and its center of rotation for nonsurgical correction of anterior open bite via maxillary molar intrusion

Kim

Choy

Park

et al. 2018

The Angle Orthodontist

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Section: Introductionmentioning

confidence: 79%

Prediction of mandibular movement and its center of rotation for nonsurgical correction of anterior open bite via maxillary molar intrusion

Kim

Choy

Park

et al. 2018

The Angle Orthodontist

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“…The results of this study are in agreement with the study conducted by Seidu A Bello et al 2011 , suggesting that impacted/unerupted teeth are more prevalent in patients with an age range of 19-26 years. 28 Gender is another predisposing variable which can be associated with impaction 29 . The results of the present study showed that males had undergone more number of extraction due to impaction (55.74%) compared to females (44.26%) [Figure 3].…”

Section: Resultsmentioning

confidence: 99%

Prevalence and Distribution of Unerupted/Impacted Teeth Among Individuals 18-25 Years of Age Visiting Outpatient Department of Private Dental College and Hospital in Chennai, India

2020

IJFMT

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The term unerupted / impacted teeth defines a failure of the tooth to erupt within the expected time into the dental arch. Impaction is a common dental anomaly where the tooth has not erupted beyond the eruption period. The incidence of unerupted / impacted teeth differs among different populations and in different ethnic groups. The aim of this study was to assess the prevalence of unerupted/ impacted teeth among patients of 18-25 years of age visiting Private Dental college and hospital, Chennai. This is a descriptive study which is performed under a university setting where all the patients reported to Private Dental college and hospital, chennai. The data was collected by reviewing patients records and analysed the data of 86000 patients who underwent extraction between June 2019 to March 2020. The population size of the study was found to be n=296 .Data was collected , tabulated ,statistical analysis was done by SPSS -IBM.( Statistical Package for Social Studies ). From the statistical analysis, it is observed that the total number of extraction done between 18-25 years was found to be n=7339 (96%) out of which only n= 295 (4%) was found with an incidence of impaction. The overall prevalence of unerupted/ impacted teeth were higher in males(55.74%) predominantly between the age groups of 24 years (18.8%) and was commonly reported to third molars (41.9%). Within the limitation of the current study, it is found that unerupted / impacted teeth are more common among 24 years of age with male predilection with higher incidence of mandibular molars.

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“…It can be advocated that the esthetic changes in the mandibular and chin position would be little inconsistent and little predictable following maxillary intrusion. [ 16 ]…”

Section: Discussionmentioning

confidence: 99%

Autorotation of the Mandible as Sequelae to Maxillary Intrusion

Reddy

Ibrahim

Bhardwaj

et al. 2021

Journal of Pharmacy and Bioallied Sciences

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Background: Autorotation of the mandible is a normally anticipated phenomenon following a surgical superior repositioning of the maxilla in clinical situations where patients have an excessive gummy smile. Prediction of the surgical treatment outcome following a presurgical orthodontic treatment is a critical element in the surgical treatment planning. Materials and Methods: The relevant articles were selected by hand search and electronic media (Google Scholar, PubMed, Science Direct, Medline, Embase, and Cochrane) from 1982 to 2020. All the relevant articles were properly screened, and findings were extracted from the articles. Results: It was observed that, following maxillary intrusion, mandible would eventually autorotate to take a new occlusion. Mandibular autorotation as a result of maxillary intrusion would lead to minimal shortening of the lower lip in the vertical plane. It was observed that the amount of mandibular autorotation correlates with the extent of maxillary impaction. Studies have shown that there is a passive soft-tissue response which may be attributed to the fact that no muscular detachment had been affected in the lower lip and soft-tissue chin region during the maxillary surgery. Conclusion: It is observed that there is a definite influence on the mandibular and chin positions as a result of maxillary intrusion and autorotation of the mandible. Every 1 mm of maxillary superior impaction, the chin moved 0.6 mm vertically and 0.2 mm horizontally. There is an appreciable shortening of the lower lip length.

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Mandibular changes associated with maxillary impaction and molar intrusion

Cited by 5 publications

References 14 publications

Prediction of mandibular movement and its center of rotation for nonsurgical correction of anterior open bite via maxillary molar intrusion

Prediction of mandibular movement and its center of rotation for nonsurgical correction of anterior open bite via maxillary molar intrusion

Prevalence and Distribution of Unerupted/Impacted Teeth Among Individuals 18-25 Years of Age Visiting Outpatient Department of Private Dental College and Hospital in Chennai, India

Autorotation of the Mandible as Sequelae to Maxillary Intrusion

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