ArticleThe Angle orthodontist2022
Alveolar bone changes after molar protraction in young adults with missing mandibular second premolars or first molars.
Article in The Angle orthodontist, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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7 citing papers in PubMed.
- Alveolar bone remodeling following orthodontic closure of missing mandibular first molar spaces: a CBCT-based morphometric study.Progress in orthodontics · 2026Article
- Mandibular third molar protraction using a segmented arch and mini-implant anchorage: A case report.Medicine · 2025Article
- Evaluation of aesthetic parameters and changes in alveolar bone level in patients undergoing maxillary expansion with invisalign technique.Scientific reports · 2025Article
- Alveolar bone changes and root resorption in adult patients undergoing mandibular molar distalization with clear aligners: a retrospective CBCT study.BMC oral health · 2025Article
- Orthodontic mesialization of third molars using a t-shaped palatal indirect anchorage device for posterior dentition rehabilitation: a case report and literature review.BMC oral health · 2025Review
- Restoration-oriented anatomical analysis of alveolar bone at mandibular first molars and implications for immediate implant placement surgery: a CBCT study.The journal of advanced prosthodontics · 2024Article
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8 authors.
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Abstract
objectivesTo assess the changes in alveolar bone of the mandibular second molars following molar protraction and investigate the factors associated with the alveolar bone changes. MATERIALS AND
methodsCone-beam computed tomography of 29 patients (mean age 22.0 ± 4.2 years) who had missing mandibular premolars or first molars and underwent molar protraction were reviewed. Alveolar bone level was measured as the distance from the cementoenamel junction at six points, buccal, lingual, mesiobuccal (MB), mesiolingual (ML), distobuccal (DB), and distolingual (DL), of the second molars at pretreatment (T0) and after molar protraction (T1). Factors associated with alveolar bone changes at the distal and mesial of the second molars were assessed.
resultsMean alveolar bone changes ranged from -1.2 mm (bone apposition) to 0.8 mm (bone resorption). The presence of a third molar impaction at T0 (P < .001), third molar angulation at T0 (P < .001), and Nolla's stage of third molar at T0 (P = .005) were significantly associated with alveolar bone level changes distal to the second molars. Treatment duration (P = .028) was significantly associated with alveolar bone level changes mesial to the second molar.
conclusionsPatients with impacted third molars, third molars at an earlier stage of development, and mesially angulated third molars at pretreatment may have less alveolar bone resorption distal to the second molars following protraction. Patients with increased treatment time may have reduced alveolar bone resorption mesial to the second molars.
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