Do premolar extractions necessarily result in a flat face? No, when properly indicated

Allgayer, Susiane; Mezomo, Maurício Barbieri

doi:10.1590/2177-6709.23.5.082-092.bbo

Cited by 3 publications

(2 citation statements)

References 32 publications

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“…When well indicated, extractions can definitely improve facial harmony. 44 In this current case, all the treatment objectives were successfully achieved after four first premolar extractions: Class I was maintained in the molars, and fully accomplished in the canines; overjet, anterior open bite, and dental crowding were corrected; tongue trust was eliminated, and facial profile convexity was slightly reduced. The final overbite was planned to allow long-term incisal mamelons wear (final overbite of 4 mm, considering that 2 mm -1 mm of upper incisors and 1 mm of lower incisors -will be ground at a constant and steady pace, with the prospective incisors occlusal function).…”

Section: Discussionmentioning

confidence: 65%

Treatment of adult patient with hyperdivergent retrognathic phenotype and anterior open bite: report of a case with non-surgical orthodontic approach

Santo¹

2020

Dental Press J. Orthod.

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Adult patients with anterior open bite and hyperdivergent retrognathic phenotype demand complex treatments, as premolar extractions, molar intrusion or orthognathic surgery. In the present clinical case, a young adult patient without significant growth, with Class I and anterior open bite, was treated with four premolar extractions. The therapeutic result shows good intercuspation, good facial esthetic, good function balance, and stability in a two-year post-fixed treatment follow-up.

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Section: Discussionmentioning

confidence: 65%

Treatment of adult patient with hyperdivergent retrognathic phenotype and anterior open bite: report of a case with non-surgical orthodontic approach

Santo¹

2020

Dental Press J. Orthod.

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“…In other words, despite the growing popularity of nonextraction treatment, many orthodontic patients have inadequate space or congestion, necessitating extractions for a successful treatment outcome [15,19]. Although there is widespread consensus that orthodontic therapy can affect the facial profile, there is still some debate [20].…”

Section: Discussionmentioning

confidence: 99%

Occlusal Plane Steepness and Profile Change Following TAD-Based One-Step Retraction on Four-Unit Extraction Cases: A Retrospective Study

Mahmood

2023

Diagnostics

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Background: With the introduction of high-tech appliances, anchorage devices, and improved patient awareness of the risks associated with maxillofacial surgery, treating complex situations with orthodontic treatment has become more difficult in recent years. This study was conducted to demonstrate that orienting the occlusal plane, all the dental, skeletal, and soft tissue parameters, would be improved and to find which of these parameters could be correlated with the steepness of the occlusal plane. Materials and methods: This was a retrospective study including 40 cephalometric interpretations for patients who were planned for four-unit extractions (20 cephalometric radiographies before treatment and 20 after finishing the treatment). All were treated in the same orthodontic clinic with the same protocol using the McLaughlin–Bennett–Trevisi (MBT) prescription, with 22 slots and one-step retraction following four-unit extraction based on temporary anchorage devices (TADs). Results: There was no significant change in the canting of the occlusal plane, and it remained relatively stable from 6.31° to 7.55°, while all the soft tissue-related cephalometric measurements were reduced significantly, except the nasolabial angle, as the relation of the upper and lower lip to the esthetic line of Ricketts’ (E-Line) was reduced by 2.91 and 2.46°, respectively; furthermore, the angle of convexity was reduced from 10.92° to 9.79°. Besides, the upper incisor display was reduced by 0.38° Conclusions: Both the Frankfort mandibular angle and upper-incisor-to-Frankfort horizontal plane were significant parametric factors associated with profile change after extraction treatment having a positive 0.01-level Pearson association with occlusal plane steepness. Therefore, using the MBT prescription with TAD-based retraction is one of the favorable methods for the management of complex cases.

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Iatrogenic retroposition of the lips sequel after bicuspid extraction-a retrospective study

Senior

Peeters²,

Aelterman³

et al. 2022

Journal of Stomatology, Oral and Maxillofacial Surgery

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Do premolar extractions necessarily result in a flat face? No, when properly indicated

Cited by 3 publications

References 32 publications

Treatment of adult patient with hyperdivergent retrognathic phenotype and anterior open bite: report of a case with non-surgical orthodontic approach

Treatment of adult patient with hyperdivergent retrognathic phenotype and anterior open bite: report of a case with non-surgical orthodontic approach

Occlusal Plane Steepness and Profile Change Following TAD-Based One-Step Retraction on Four-Unit Extraction Cases: A Retrospective Study

Iatrogenic retroposition of the lips sequel after bicuspid extraction-a retrospective study

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