Effects of maxillary incisor inclination on dentoalveolar changes in class II division 1 and 2 non-extraction treatment for Caucasian children – A retrospective study using CBCT

Kang, He-Kyong; Guo, Jing; Kaczynski, Richard; Liu, Chunyan; Zhou, Zheng

doi:10.1016/j.ortho.2020.11.003

Cited by 6 publications

(6 citation statements)

References 34 publications

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“…A correlation between the alveolar BT change on the inclination of individual teeth was also reported by Maspero et al 11 . Kang et al 31 . showed a significant correlation between the changes in the inclination of teeth 11 and 21 and the decrease in BT at levels 3, 6 and 9 mm from CEJ on the paöatal but on the increase in BT at the same levels on the buccal side, which is only partially in agreement with our results.…”

Section: Discussionsupporting

confidence: 93%

“…did not report any statistically significant changes buccally during retro‐inclination of the upper incisors. In contrast, some studies reported a statistically significant decrease in the thickness of the alveolar bone both buccally and palatally at the apical level in the area of the upper incisors 11,31 …”

Section: Discussionmentioning

confidence: 93%

“…Notably, Kang et al showed a statistically significant decrease in ABH in the upper central incisors, buccally and palatally, in the case of retro-inclination or proclination, respectively. 31 A study by Atik et al 18 reported a significantly higher decrease in ABH in teeth with a proclination of 18.39° compared to those with a proclination of 10.28°. Taken together, all these data suggest that the extent of proclination affects the severity of ABH decrease.…”

Section: Discussionmentioning

confidence: 98%

“…Notably, Kang et al. showed a statistically significant decrease in ABH in the upper central incisors, buccally and palatally, in the case of retro‐inclination or proclination, respectively 31 . A study by Atik et al 18 .…”

Section: Discussionmentioning

confidence: 98%

“…In contrast, some studies reported a statistically significant decrease in the thickness of the alveolar bone both buccally and palatally at the apical level in the area of the upper incisors. 11,31 In the lower jaw, the changes in the incisors' inclination resulted in changes in bone wall thickness and the character of these changes the correlation coefficients ranged between 0.6-0.79, suggesting a strong correlation. A correlation between the alveolar BT change on the inclination of individual teeth was also reported by Maspero et al 11 Kang et al 31 showed a significant correlation between the changes in the inclination of teeth 11 and 21 and the decrease in BT at levels 3, 6 and 9 mm from CEJ on the paöatal but on the increase in BT at the same levels on the buccal side, which is only partially in agreement with our results.…”

Section: Discussionmentioning

confidence: 99%

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Changes in the alveolar bone morphology among different patterns of incisor inclination during the alignment phase in orthodontic treatment without premolar extraction

Kobylyanskyy,

Schwarz,

Rausch

et al. 2024

Orthod Craniofacial Res

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ObjectiveThe present study investigated bone remodelling in the upper and lower incisor regions depending on the inclination pattern during the alignment phase of orthodontic treatment (OT).Materials and MethodsThis prospective clinical study included 71 patients undergoing OT without premolar extraction. Cone beam computed tomography scans were taken before and after the alignment phase and the changes in the inclination, alveolar bone height (ABH) and bone thickness (BT) at levels 2, 3, 4, 6, 8 and 9 mm starting from the cementoenamel junction (CEJ) were determined.ResultsTeeth were divided into ‘Retroinclination’ (lingual crown inclination <0°), ‘Proclination‐low’ (buccal crown inclination between 0° and 5°), or ‘Proclination‐high’ (buccal crown inclination >5°). The alignment phase of OT resulted in ABH loss. The highest ABH loss in the maxilla was observed on the buccal side in the ‘Proclination‐high’ and was 0.71 mm. ABH loss by 1.1 mm was observed in the mandible on the lingual side in the ‘Retroinclination’ group. The most significant changes in BT by up to 2 mm were observed at levels 6, 8 and 9 mm and these changes exhibited a moderate to strong correlation with the alterations in the inclination of individual incisors. At levels 2, 3 and 4 mm, the highest decrease in BT by up to 0.83 mm was observed on the palatal side of upper incisors in the ‘Proclination‐high’ group.ConclusionThe direction and amount of tooth inclination partially determine changes in the bone parameters during the alignment phase.

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Section: Discussionsupporting

confidence: 93%

Section: Discussionmentioning

confidence: 93%