Architectural changes in alveolar bone for dental decompensation before surgery in Class III patients with differing facial divergence: a CBCT study

Yao, Chung-Chen Jane; Chang, Zwei-Chieng; Lai, Eddie Hsiang-Hua; Hsu, Li-Fang; Hwang, Hann-Min; Chen, Yi-Jane

doi:10.1038/s41598-020-71126-3

Cited by 6 publications

(13 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The results of Yao’s study [ 26 ] are partially in consent with previous studies by Sun et al [ 27 ] and Lee et al [ 28 ], where bone margin of labial and lingual bone was also lowered after presurgical orthodontic treatment in class III patients; however, the total apical bone thickness did not change.…”

Section: Resultssupporting

confidence: 80%

“…What is more interesting, the thickness of the alveolar bone was reduced after proclination (total bone thickness) [ 23 ] and retraction (lingual and buccal) of lower anterior teeth [ 35 , 36 ]. The results were similar for adults patients [ 26 , 28 , 31 , 32 , 33 , 34 ]. The only “gain” in the measured variable was for buccal thickness of mandibular incisor in bimaxillary protrusion patients treated with extraction therapy [ 29 , 30 ].…”

Section: Discussionsupporting

confidence: 63%

“…Mandibular incisors proclination induced a decrease in both buccal and lingual bone height and a decrease in bone thickness at apex level, irrespective of facial growth pattern. Authors indicated factors affecting bone changes: facial divergence (MPA angle), tooth axis proclination, treatment time, tooth site and irregularity index [ 26 ]. On the contrary, Lee et al disproved the correlation between the degree of incisors inclination and the extent of alveolar bone change.…”

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

Bone Remodeling during Orthodontic Movement of Lower Incisors—Narrative Review

Kalina

Grzebyta

Zadurska

2022

IJERPH

View full text Add to dashboard Cite

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.

show abstract

Section: Resultssupporting

confidence: 80%

Section: Discussionsupporting

confidence: 63%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Bone Remodeling during Orthodontic Movement of Lower Incisors—Narrative Review

Kalina

Grzebyta

Zadurska

2022

IJERPH

View full text Add to dashboard Cite

show abstract

“…On the other hand, in the past, the locations of the incisors were usually detected by measuring the thickness of the alveolar bone at the root apex without distinguishing between cortical and cancellous bone [ 13 ]. In this study, we improved the measurement methods of Mao and other researchers [ 14 , 15 ]: we evaluated the alveolar-bone morphology at the mandibular central incisors by measuring the thicknesses and areas of the cancellous and cortical bone at the level of the CEJ; 3, 6, and 9 mm below the CEJ; midway between the CEJ and the root apex; and at the root apex.…”

Section: Discussionmentioning

confidence: 99%

Relationship between alveolar-bone morphology at the mandibular incisors and their inclination in adults with low-angle, skeletal class III malocclusion—A retrospective CBCT study

et al. 2022

PLoS ONE

View full text Add to dashboard Cite

Objective To quantitatively study the effect of the labial inclination of the mandibular central incisors on the surrounding cortical and cancellous-bone morphology among patients with low-angle, skeletal class III malocclusion, by using cone-beam computed-tomography (CBCT) imaging. Materials and methods The CBCT images of 60 patients with low-angle, skeletal class III malocclusion were divided into lingual-inclination, upright, and labial-inclination groups. The height of the alveolar bone and the thickness and area of the cortical, cancellous, and total alveolar bone were measured separately on each side of the mandibular central incisors. Results The thickness of the labial cortical bone from 6 mm below the cementoenamel junction (CEJ) to the root apex; the thickness of the labial cancellous bone at the root apex; the total thickness of the alveolar bone at the root apex; the area of labial cortical bone; the total area of labial alveolar bone; and the height of the labial alveolar bone were highest in the labial-inclination group (all P<0.05). All these variables were positively correlated with the labial inclination of the mandibular central incisors (all P<0.05). There were no statistical differences between the groups for any of the measurements on the lingual side of the teeth (P>0.05). Conclusion The morphology of the alveolar bone on the labial but not the lingual side of the mandibular central incisors was statistically significantly correlated with the labial inclination of those teeth in patients with low-angle, skeletal class III malocclusion.

show abstract

“…Studies showed that the measurements of alveolar bone height generally decreased after treatment (1), and alveolar bone height and thickness, especially at the cervical level,…”

Section: Introductionmentioning

confidence: 99%

Alveolar bone defects around mandibular anterior teeth in Class I, II, and III malocclusions: a retrospective CBCT evaluation

Wang¹,

Ma²,

Chen³

2023

Front Oral Maxillofac Med

View full text Add to dashboard Cite

Background: The aim of this study was to quantitatively and qualitatively evaluate alveolar defects of mandibular anterior alveolar bone in three different types of malocclusion with cone-beam computed tomography (CBCT) by an observational cross-sectional study.Methods: A total of 542 teeth from 30 skeletal Class I malocclusion (ANB =0-4°) (mean age: 19.26±5.63 years), 33 Class II malocclusion (ANB >4°) (mean age: 19.36±4.17 years), and 28 Class III malocclusion (ANB <0°) (mean age: 21.47±4.53 years) patients were evaluated with CBCT. CBCT images and lateral cephalograms were imported into the Dolphin software in DICOM format, and 3D reconstructions were performed. Sagittal sectional views were evaluated with regard to labial and lingual alveolar bone thickness and vertical alveolar bone level. Analysis of variance and Tukey's test were used for statistical comparisons at P<0.05.Results: Class II (64.47%) and Class III malocclusions (58.43%) had higher prevalence of dehiscence than Class I malocclusions (32.96%). No significant difference was found in the prevalence of fenestration among the three groups. In general, Class II and III groups had lesser alveolar bone volume than the Class I group. Furthermore, the vertical alveolar height and coronal alveolar bone thickness in Class II malocclusion was significantly lesser than that in the Class III group. Conclusions:The Class II group, followed by the Class III group, showed the most severe alveolar bone deficiency. For these patients undergoing orthodontic treatment, the comprehensive treatment should be taken to avoid aggravated preexisting alveolar bone loss in the mandibular anterior teeth, and bone augmentation would be recommended when necessary.

show abstract

Architectural changes in alveolar bone for dental decompensation before surgery in Class III patients with differing facial divergence: a CBCT study

Cited by 6 publications

References 36 publications

Bone Remodeling during Orthodontic Movement of Lower Incisors—Narrative Review

Bone Remodeling during Orthodontic Movement of Lower Incisors—Narrative Review

Relationship between alveolar-bone morphology at the mandibular incisors and their inclination in adults with low-angle, skeletal class III malocclusion—A retrospective CBCT study

Alveolar bone defects around mandibular anterior teeth in Class I, II, and III malocclusions: a retrospective CBCT evaluation

Contact Info

Product

Resources

About