Alveolar bone changes in maxillary and mandibular anterior teeth during orthodontic treatment: A systematic review and meta‐analysis

Guo, Rongrong; Zhang, Liwen; Hu, Mingxing; Huang, Yiping; Li, Weiran

doi:10.1111/ocr.12421

Cited by 46 publications

(37 citation statements)

References 36 publications

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“…The IC is a conduit between the nasal and oral cavities and houses a neurovascular bundle consisting of the nasopalatine nerve, greater palatine and a branch of the sphenopalatine arteries. Like other hard and soft tissues containing nerves and blood vessels, it has the potential to respond to stimuli, including orthodontic tooth movement, 10 through regional remodelling changes 5,16‐19 . Interestingly, our results also demonstrate that, to some degree, the IC remodels 3‐dimensionally.…”

Section: Discussionsupporting

confidence: 57%

Incisive canal remodelling following maximum anterior retraction reduces apical root resorption

Chung

Nguyen

Lee

et al. 2021

Orthod Craniofacial Res

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Maximum retraction of the anterior teeth with premolar extraction is necessary to improve occlusion and facial aesthetics in patients with lip protrusion or severe skeletal/dental discrepancies. The application of temporary anchorage devices (TADs) has improved the efficiency and the predictability of 3-dimensional management of tooth movement and anchorage control; thus, incorporating TADs in comprehensive treatment, especially for premolar extraction cases, is well-accepted in clinical orthodontics. 1

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Section: Discussionsupporting

confidence: 57%

Incisive canal remodelling following maximum anterior retraction reduces apical root resorption

Chung

Nguyen

Lee

et al. 2021

Orthod Craniofacial Res

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“…The control of retraction movement (more root than crown movement) enhanced preservation on bone height and thickness [ 30 ]. The results of this narrative review confirm the statements from systematic review by Guo et al They concluded that alveolar bone height and thickness, especially at the cervical level, decreased during both labial and lingual movement of anterior teeth [ 38 ].…”

Section: Discussionsupporting

confidence: 84%

“…However, on the basis of a meta-analysis, bone remodeling is not stable after retraction. Both alveolar bone loss on the lingual side and alveolar bone gain on the labial side were obvious 1–3 months after retraction but less obvious after orthodontic treatment [ 38 ].…”

Section: Discussionmentioning

confidence: 99%

Bone Remodeling during Orthodontic Movement of Lower Incisors—Narrative Review

Kalina

Grzebyta

Zadurska

2022

IJERPH

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The tooth movement in the alveolus is possible due to bone remodeling. This process could be the risk factor for the formation of gingival recessions—the most common side effects of orthodontic therapy. Gingival recessions are found 5.8–11.5% more frequently among the orthodontically treated patients. What is more, anterior mandibular teeth are the ones most prone to gingival recession dehiscences and fenestrations. The aim of this narrative review was to evaluate, based on CBCT (Cone beam computed tomography) scans, the changes in the alveolar bone of lower incisors in adolescent and adult patients after orthodontic tooth movements. From the pool of 108 publications, a total of 15 fulfilled the criteria of this review. Both retrospective and prospective longitudinal studies—using CBCT or CT (Computed Topography) and evaluating alveolar bone changes in mandibular incisors during orthodontic treatment performed before and after teeth movement—were included. In the group of growing patients, either proclination or retroclination of mandibular incisors led to increase of the distance from CEJ (cementoenamel junction) to marginal bone crest. The difference in bone loss was greater on the lingual side of the incisors in both types of tooth movement. The results were similar for adults patients. The thickness of the alveolar bone was reduced after proclination (total bone thickness) among growing and non-growing patients and retraction (lingual and buccal) of lower anterior teeth in the group of growing patients. The only improvement was measured for buccal thickness of mandibular incisor in bimaxillary protrusion patients treated with extraction therapy. The control of retraction movement (more root than crown movement) enhanced preservation on bone height and thickness. In order to minimize possible deterioration and place teeth in the center of alveolus, CBCT monitoring and scrupulous clinical evaluation are recommended.

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“…Some CBCT studies have indicated that canine roots are usually positioned close to the maxillary cortical bone [ 24 , 25 ]. In a previous systematic review, we found that maxillary canines had a high risk of alveolar bone dehiscence and fenestration in extraction patients [ 26 ]. Therefore, lingual root torque control of the canines should be enhanced in extraction cases.…”

Section: Discussionmentioning

confidence: 99%

Three-dimensional evaluation of maxillary tooth movement in extraction patients with three different miniscrew anchorage systems: a randomized controlled trial

Zhang

Guo

et al. 2022

Prog Orthod.

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Objective To compare the three-dimensional (3-D) movement of maxillary teeth in response to three common miniscrew anchorage systems in extraction patients with maxillary dentoalveolar protrusion. Materials and methods The study employed a randomized controlled single-blinded design with three arms. Thirty extraction patients who required maximum anchorage to retract maxillary anterior teeth were included and randomly allocated into three treatment groups: space closure with direct miniscrew anchorage and low crimpable hooks (DL group), indirect miniscrew anchorage and low crimpable hooks (IL group), and direct miniscrew anchorage and high crimpable hooks (DH group). Cone beam computed tomography (CBCT) images of all included patients were obtained immediately before (T0) and after (T1) space closure. The outcomes were 3-D positional changes of maxillary central incisor, lateral incisor, canine, second premolar, and first molar. The repeated measures analysis of variance with post hoc LSD test was used to evaluate differences among groups. Results A significant intrusion (− 1.34 mm; 95% CI, − 1.60 mm, 1.08 mm) and buccal (− 6.92°; 95% CI, − 8.67°, − 5.13°) and distal (4.90°; 95% CI, 3.75°, 6.04°) inclination of the maxillary first molars were observed in the DL group, compared to the other two groups. The mesial movement (− 0.40 mm; 95% CI, − 0.83 mm, − 0.03 mm) of the maxillary first molars was found in the IL group, while the DL (0.44 mm; 95% CI, 0.15 mm, 0.73 mm) and IL (0.62 mm; 95% CI, 0.28 mm, 0.96 mm) groups exhibited distal movement. In the DH group, the lingual inclination changes of maxillary central incisor (5.04°; 95% CI, 2.82°, 7.26°) were significantly lower, which is indicative of good lingual root torque control of the maxillary anterior teeth. Conclusion Three miniscrew anchorage systems produced significantly different 3-D maxillary tooth movement. The maxillary first molars were significantly buccally and distally inclined and intruded in patients using direct miniscrew anchorages with low crimpable hooks. Direct miniscrew anchorages with high crimpable hooks could help to achieve better lingual root torque control of the maxillary incisors. Trial registration The trial was registered at www.chictr.org.cn (ChiCTR1900026960). Registered 27 October 2019.

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Alveolar bone changes in maxillary and mandibular anterior teeth during orthodontic treatment: A systematic review and meta‐analysis

Cited by 46 publications

References 36 publications

Incisive canal remodelling following maximum anterior retraction reduces apical root resorption

Incisive canal remodelling following maximum anterior retraction reduces apical root resorption

Bone Remodeling during Orthodontic Movement of Lower Incisors—Narrative Review

Three-dimensional evaluation of maxillary tooth movement in extraction patients with three different miniscrew anchorage systems: a randomized controlled trial

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