Shanghai kou qiang yi xue = Shanghai journal of stomatology · 2025
[The influence of minimally invasive jaw surgery combined with orthodontic treatment for maxillary protrusion on tooth roots and alveolar bone].
Аннотация на английскомСтатьяНазвание и аннотация: Перевод в очереди
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Zhou Qin, Chen Qiwen, Yan Jieya, Liu Jiaqiang
Аннотация
PURPOSE: To explore the effects of minimally invasive jaw surgery combined with orthodontic treatment on the root length of maxillary anterior teeth and alveolar bone thickness after correcting maxillary protrusion, and to provide a reference for the selection of clinical treatment plans.
METHODS: A total of 40 female patients with maxillary protrusion who visited Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine from January 2018 to February 2024 were selected and divided into two groups according to the treatment plan: the experimental group(n=20) received minimally invasive jaw surgery combined with orthodontic treatment, and the control group(n=20) received orthodontic treatment with simple tooth extraction. The orthodontic treatment course and changes in the root length of maxillary anterior teeth and alveolar bone thickness before and after treatment were compared between the two groups.
RESULTS: The space closure time in the experimental group was (7.2±1.15) months, and the total orthodontic treatment time was (19.6±3.35) months, both significantly shorter than those in the control group [(12.93±1.27) months and (27.0±3.22) months, respectively] (P＜0.001); there was no significant difference in the alignment and leveling time between the two groups(P=0.63). Root resorption of maxillary anterior teeth occurred in both groups after treatment, but there was no significant difference between the two groups(P＞0.05). The thickness of the labial alveolar bone at the root neck and mid-root regions increased in the experimental group after treatment, while it decreased in the control group, and the difference between the two groups was significant (P＜0.01).
CONCLUSIONS: Minimally invasive jaw surgery combined with orthodontic treatment for maxillary protrusion can significantly shorten the orthodontic treatment course and increase the thickness of the labial alveolar bone of maxillary anterior teeth to reduce the risk of bone dehiscence and fenestration. However, it cannot reduce orthodontically related root resorption.
METHODS: A total of 40 female patients with maxillary protrusion who visited Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine from January 2018 to February 2024 were selected and divided into two groups according to the treatment plan: the experimental group(n=20) received minimally invasive jaw surgery combined with orthodontic treatment, and the control group(n=20) received orthodontic treatment with simple tooth extraction. The orthodontic treatment course and changes in the root length of maxillary anterior teeth and alveolar bone thickness before and after treatment were compared between the two groups.
RESULTS: The space closure time in the experimental group was (7.2±1.15) months, and the total orthodontic treatment time was (19.6±3.35) months, both significantly shorter than those in the control group [(12.93±1.27) months and (27.0±3.22) months, respectively] (P＜0.001); there was no significant difference in the alignment and leveling time between the two groups(P=0.63). Root resorption of maxillary anterior teeth occurred in both groups after treatment, but there was no significant difference between the two groups(P＞0.05). The thickness of the labial alveolar bone at the root neck and mid-root regions increased in the experimental group after treatment, while it decreased in the control group, and the difference between the two groups was significant (P＜0.01).
CONCLUSIONS: Minimally invasive jaw surgery combined with orthodontic treatment for maxillary protrusion can significantly shorten the orthodontic treatment course and increase the thickness of the labial alveolar bone of maxillary anterior teeth to reduce the risk of bone dehiscence and fenestration. However, it cannot reduce orthodontically related root resorption.