Clinical observation of maxillary alveolar bone mineral density with dental fluorosis by cone beam computed tomography
10.3760/cma.j.issn.2095-4255.2018.05.012
- VernacularTitle:锥形束CT检测氟斑牙患者上颌牙槽骨骨密度的临床观察
- Author:
Haihui WANG
1
;
Kejia CHU
;
Zhijun ZHENG
;
Ying LIANG
;
Juxiang PENG
Author Information
1. 贵阳市口腔医院儿童口腔科
- Keywords:
Bone density;
Alveolar bone;
Fluorosis,dental
- From:
Chinese Journal of Endemiology
2018;37(5):399-401
- CountryChina
- Language:Chinese
-
Abstract:
Objective To observe the maxillary alveolar cortical bone and cancellous bone mineral density of patients with different degree of dental fluorosis.Methods According to the diagnostic criteria of dental fluorosis (WS/T 208-2011),from March 2015 to March 2017,30 orthodontic dental fluorosis patients were selected in Guiyang Stomatological Hospital.According to the degree of tooth damage,patients were divided into mild,moderate and severe fluorosis groups,10 cases per group;10 normal orthodontic patients were selected as control group.A cone beam computed tomography (CBCT) was taken preoperatively to measure the CT values (the attenuation value after absorption of X-rays through the tissue,HU) of buccal alveolar cortical bone and cancellous bone density in incisor,canine,premolar,and molar areas.Results The buccal alveolar cortical bone densities of incisor [(1 155.6 ± 80.7),(1 048.8 ± 106.7),(885.1 ± 118.1),(589.7 ± 104.6) HU],canine [(1 221.0 ± 76.l),(1 054.6 ± 95.3),(913.3 ± 109.4),(608.5 ± 131.4) HU],premolar [(1 173.5 ± 91.2),(1 020.9 ± 113.3),(894.5 ± 107.9),(593.5 ± 119.7) HU],and molar [(1 113.6 ± 89.5),(1 017.2 ± 101.3),(877.2 ± 102.9),(609.1 ± 113.5) HU] areas in control,mild,moderate and severe fluorosis groups,were significantly different statistically (F =45.557,51.411,61.200,56.845,P ＜ 0.01),CT values of dental fluorosis group were significant lower than that of control group (P ＜ 0.05).The cancellous bone mineral density of the incisor [(633.4 ± 67.7),(556.8 ± 80.1),(473.1 ± 71.7),(358.8 ± 98.7) HU],canine [(644.9 ± 70.1),(570.6 ± 73.3),(490.0 ± 85.2),(361.1 ± 93.8) HU],premolar [(630.5 ± 72.5),(554.5 ± 70.7),(477.7 ± 84.0),(353.6 ± 101.4) HU],and molar [(637.6 ± 79.8),(558.5 ± 84.3),(471.7 ± 72.8),(367.7 ± 88.7) HU] areas in control,mild,moderate and severe fluorosis groups,were significantly different statistically (F =20.183,20.245,22.751,21.268,P ＜ 0.01),CT values of dental fluorosis group were significant lower than that of control group (P ＜ 0.05).Conclusion The bone density of maxillary alveolar cortical bone and cancellous bone is reduced in dental fluorosis patients.
