Evaluation of pharyngeal airway dimensions and cephalometric changes after premolar extraction and nonextraction orthodontic treatment in adolescent and adult patients

Karaman, Ahmet; Güdük, Zekeriya; Genç, Esra

doi:10.1016/j.jormas.2022.08.018

Cited by 2 publications

(4 citation statements)

References 32 publications

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“…Regarding the pharyngeal airway space analysis, Irani [ 32 ] reported significant decreases in all pharyngeal airway volumes after isolated mandibular setback surgery, which showed that posteriorly displaced tongue could narrow the retrolingual area and decrease the airway space. Karaman [ 13 ] stated that premolar extraction during orthodontic treatment did not affect the airway dimensions much. Prak [ 33 ] revealed that the amount of maxillary distalization in adults had an inverse correlation with the changes in airway.…”

Section: Discussionmentioning

confidence: 99%

“…Many researchers have focused on the influence of premolar extractions on the upper airway. Karaman [ 13 ] found that the orthodontic treatment of premolar teeth extraction did not affect pharyngeal airway dimensions significantly by radiograph analyses. However, another study indicated that premolar teeth retraction would lead to the reduction of the airway volume [ 14 ].…”

Section: Introductionmentioning

confidence: 99%

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Three-dimensional evaluation of alveolar bone and pharyngeal airway dimensions after mandibular dentition distalization in patients with Class III malocclusion: a retrospective study

Zhou,

Sun,

Zhang

et al. 2023

Head Face Med

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Background To three-dimensionally evaluate changes of the alveolar bone around the mandibular anterior teeth and pharyngeal airway dimensions in adults with Class III malocclusion before and after orthodontic treatment of mandibular dentition distalization. Methods In this retrospective study, cone-beam computed tomography (CBCT) scans of 20 patients with Class III malocclusion who underwent mandibular dentition distalization were obtained both before and after treatment. Three-dimensional changes of the thickness and vertical marginal bone levels around mandibular incisors and canines were assessed and compared. And airway volumes of the palato-, glosso-, laryngopharynx and the minimum axial area were measured and compared before and after treatment. Results A significant decrease of lingual bone thickness of mandibular incisors, partial labial and lingual bone thickness of canines were observed (P < 0.05). The reduction in root length of incisors and canines, labial and lingual vertical marginal bone levels were significant after orthodontic treatment. No significant correlations between mandibular dentition distalization and pharyngeal airway dimensions were observed. Conclusions Mandibular dentition distalization could result in the loss of alveolar bone around anterior teeth in Class III malocclusion, especially for the cervical marginal bone. Pharyngeal airway dimensions were not affected to a high extent after distalization. Trial registration Retrospctively registered.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Three-dimensional evaluation of alveolar bone and pharyngeal airway dimensions after mandibular dentition distalization in patients with Class III malocclusion: a retrospective study

Zhou,

Sun,

Zhang

et al. 2023

Head Face Med

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“…One of the most popular treatments in orthodontic therapy is premolar extraction [3,4]. Extraction of premolars is often chosen as an alternative in searching for space to correct moderate or severe crowding, management of partial malocclusions with impacted canines, anterior open bites, and large overjets [3,[5][6][7][8]. In addition, premolar extraction is the main alternative chosen in the treatment plan in patients with a protrusive profile.…”

Section: Discussionmentioning

confidence: 99%

“…One of the most common procedures in orthodontic treatment is premolars extraction [3,4]. Extraction of premolars is often chosen as an alternative in finding space to correct moderate or severe crowding, managing partial malocclusions with impacted canines, anterior open bites, and large overjets [3,[5][6][7][8]. In addition, premolar extraction is the main alternative chosen in the treatment plan in patients with a protrusive profile.…”

Section: Introductionmentioning

confidence: 99%

The effect of orthodontic treatment with premolar extraction against the temporomandibular joint and masticatory muscles: A review

Anis Irmawati,

Christianto Rici Walujo,

Yassir Ahmad Azzaim

et al. 2023

World J. Adv. Res. Rev.

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Temporomandibular joint (TMJ) is a hinge joint that connects the maxillary and mandibular bones between the head of the mandibular condyle and the temporal bone. Removing premolars can cause Temporomandibular Disorder (TMD) which is still debated due to diagnostic errors or errors in mechanotherapy during treatment. Most of the literature states that there is no scientific evidence that premolar removal is a risk for TMD. However, orthodontists should still be aware of anterior tooth contact during orthodontic treatment due to incisor retroclination, deepening of the bite, and incisal interference. The use of low force is still the mainstay for anterior retraction so that there is no decrease in vertical dimension due to loss of anchorage. Achieving the centric relation is the ideal goal of orthodontic treatment, so determining the pre-treatment centric relation is essential. Orthodontic treatment generally tends to improve rather than worsen TMJ conditions. Purpose: This study aims to describe changes in the TMJ and masticatory muscles after orthodontic treatment with premolar extraction. Conclusion: Several studies have shown no significant difference in masticatory muscles before and after orthodontic treatment with extraction.

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Evaluation of pharyngeal airway dimensions and cephalometric changes after premolar extraction and nonextraction orthodontic treatment in adolescent and adult patients

Cited by 2 publications

References 32 publications

Three-dimensional evaluation of alveolar bone and pharyngeal airway dimensions after mandibular dentition distalization in patients with Class III malocclusion: a retrospective study

Three-dimensional evaluation of alveolar bone and pharyngeal airway dimensions after mandibular dentition distalization in patients with Class III malocclusion: a retrospective study

The effect of orthodontic treatment with premolar extraction against the temporomandibular joint and masticatory muscles: A review

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