OBJECTIVE: To compare skeletal maturation as measured by hand-wrist bone analysis and by cervical vertebral analysis. MATERIALS AND METHODS: A radiographic hand-wrist bone analysis and cephalometric cervical vertebral analysis of 30 patients (14 males and 16 females; 7-18 years of age) were examined. The hand-wrist bone analysis was evaluated by the Bjork index, whereas the cervical vertebral analysis was assessed by the cervical vertebral maturation stage (CVMS) method. To define vertebral stages, the analysis consisted of both cephalometric (13 points) and morphologic evaluation of three cervical vertebrae (concavity of second, third, and fourth vertebrae and shape of third and fourth vertebrae). These measurements were then compared with the hand-wrist bone analysis, and the results were statistically analyzed by the Cohen kappa concordance index. The same procedure was repeated after 6 months and showed identical results. RESULTS: The Cohen kappa index obtained (mean +/- SD) was 0.783 +/- 0.098, which is in the significant range. The results show a concordance of 83.3%, considering that the estimated percentage for each case is 23.3%. The results also show a correlation of CVMS I with Bjork stages 1-3 (interval A), CVMS II with Bjork stage 4 (interval B), CVMS III with Bjork stage 5 (interval C), CVMS IV with Bjork stages 6 and 7 (interval D), and CVMS V with Bjork stages 8 and 9 (interval E). CONCLUSIONS: Vertebral analysis on a lateral cephalogram is as valid as the hand-wrist bone analysis with the advantage of reducing the radiation exposure of growing subjects.
OBJECTIVE: To compare skeletal maturation as measured by hand-wrist bone analysis and by cervical vertebral analysis. MATERIALS AND METHODS: A radiographic hand-wrist bone analysis and cephalometric cervical vertebral analysis of 30 patients (14 males and 16 females; 7-18 years of age) were examined. The hand-wrist bone analysis was evaluated by the Bjork index, whereas the cervical vertebral analysis was assessed by the cervical vertebral maturation stage (CVMS) method. To define vertebral stages, the analysis consisted of both cephalometric (13 points) and morphologic evaluation of three cervical vertebrae (concavity of second, third, and fourth vertebrae and shape of third and fourth vertebrae). These measurements were then compared with the hand-wrist bone analysis, and the results were statistically analyzed by the Cohen kappa concordance index. The same procedure was repeated after 6 months and showed identical results. RESULTS: The Cohen kappa index obtained (mean +/- SD) was 0.783 +/- 0.098, which is in the significant range. The results show a concordance of 83.3%, considering that the estimated percentage for each case is 23.3%. The results also show a correlation of CVMS I with Bjork stages 1-3 (interval A), CVMS II with Bjork stage 4 (interval B), CVMS III with Bjork stage 5 (interval C), CVMS IV with Bjork stages 6 and 7 (interval D), and CVMS V with Bjork stages 8 and 9 (interval E). CONCLUSIONS: Vertebral analysis on a lateral cephalogram is as valid as the hand-wrist bone analysis with the advantage of reducing the radiation exposure of growing subjects.
Authors: Amanda C Cunha; Lucia Hs Cevidanes; Eduardo F Sant'Anna; Fabio R Guedes; Ronir R Luiz; James A McNamara; Lorenzo Franchi; Antonio Carlos O Ruellas Journal: Dentomaxillofac Radiol Date: 2018-03-12 Impact factor: 2.419
Authors: R C Santiago; A R Cunha; G C Júnior; N Fernandes; M J S Campos; L F M Costa; R W F Vitral; A M Bolognese Journal: Dentomaxillofac Radiol Date: 2013-12-06 Impact factor: 2.419
Authors: Rodrigo César Santiago; Luiz Felipe de Miranda Costa; Robert Willer Farinazzo Vitral; Marcelo Reis Fraga; Ana Maria Bolognese; Lucianne Cople Maia Journal: Angle Orthod Date: 2012-03-14 Impact factor: 2.079