Arch Morphology,Alveolar Bone Thickness,and Sagittal Plane Position of Maxillary Middle Incisors Evaluated by Cone-beam Computed Tomography
Objective:To evaluate the relationship between arch morphology,sagittal root position(SRP),and alveolar bone thickness of maxillary anterior teeth through cone-beam computed tomography(CBCT)images,and to group them according to age and gender.Methods:The CBCT images of 160 patients who met the inclusion crite-ria in H enan Province were analyzed and grouped according to dental arch morphology,age,and gender.Three hundred and twenty sagittal CBCT images of the maxillary central incisor of these patients were examined to meas-ure the thickness of labial and palatal plates for statistical analysis.Results:The alveolar bone thickness was signifi-cantly depended on arch morphology and SRP.The bone thickness in the palatine side was the highest in the circular dental arch and grade Ⅰ SRP.Apical arch type and grade Ⅱ SRP type had the highest labial bone thickness.There was no correlation between dental arch morphology and SRP.Age,gender,arch shape,and SRP were significantly correlated with alveolar bone thickness.Conclusion:Age,gender,arch shape,and SRP were correlated with alveo-lar bone thickness of maxillary central incisor.Clinicians should consider these factors when planning implantation.
maxillary central incisor teethcone-beam CTdental arch morphologyalveolar bone thick-nessdental implantation