Comparative study of the condylar positions in different sagittal skeletal facial types with cone-beam computed tomography / 华西口腔医学杂志

<p><b>OBJECTIVE</b>To investigate the differences in the condylar position of subjects with skeletal class I and skeletal class II. To provide a basis of diagnosis and treatment.</p><p><b>METHODS</b>Group A was composed of 50 subjects with skeletal class I (27 males and 26 females; age range = 18 years to 30 years; mean age=26 years). Group B comprised 50 subjects with skeletal class II (24 males and 26 females; age range = 18 years to 28 years; mean age=25 years). The condylar position and the shapes of the condyle and the glenoid fossa were linearly measured on the sagittal and coronal sections by cone-beam computed tomography (CBCT). Data were analyzed by SPSS 19.0.</p><p><b>RESULTS</b>No statistically significant differences were found in the measurements of the condylar position between the sides of each group on the sagittal plane and the coronal plane (P > 0.05). There were significant differences on the anterior space and the posterior space between group A and B (P < 0.05). The A/P joint space ratio of group A was larger than that of group B (P < 0.05).</p><p><b>CONCLUSION</b>The subjects of skeletal class I show an anterior condyle position. The subjects of skeletal class II show a posterior condyle position.</p>

Implant anchorage to depress the elongated opposed teeth for the mandibular implant prosthesis:A case report / 实用口腔医学杂志

Implant anchorage depressed the elongated opposed teeth to prepare enough space for the mandibular dentition.Finally,a better dental implant prosthesis can be achieved.