Measurementand correlation analysis between the mandibular dental and basal arch forms in three skeletalmalocclusions
LIN Si-dou,WU Bu-lin,SUN Feng-yang,TIAN Zhi-hui,ZHONG En-yi,CI Bo-wen,HUANG Wen-hua
Chinese Journal of Clinical Anatomy ›› 2016, Vol. 34 ›› Issue (2) : 171-175.
Measurementand correlation analysis between the mandibular dental and basal arch forms in three skeletalmalocclusions
Objective To investigate the differences and correlations between the mandibular dental and basal arch forms in subjects with normal occlusion and those of skeletal malocclusions. Methods Virtual pretreatment mandibular models of patients (27 Class I,30 Class II, 20 Class III and 27 normal occlusion) were selected to measure widths and lengths of dental and basal arch. The differences and correlations between indicators were analyzed, and then fitting curves of dental and basal arch were made.Results The mandibular basal arch widths and lengths were significantly greater in the Class III group compared to other groups, the dental arch widths were significantly greater in the Class Ⅲ group compared to the Class II group, the anterior dental lengths were significantly greater in the Class Ⅱ group compared to other groups. The widths in canine, molar regions and the whole arch lengths of dental and basal arch demonstrated high correlation coefficient (r=0.818, 0.836, 0.818), the anterior arch lengths demonstrated low correlation coefficient(r=0.395). Conclusions The basal arch of Class III group is overgrown, while the anterior arch lengths of Class II group are largest to cover its basal arch hypoplasia. The dental and basal arch demonstrates correlation.
Skeletal / malocclusion / Dental arch form / Basal arch form / Curve fitting
[1] Lundström A F. Malocclusion of the teeth regarded as a problem in connection with the apical base[J]. International Journal of Orthodontia, Oral Surgery and Radiography, 1925, 11(11): 1022-1042.
[2] Zou W, Wu J, Jiang J, et al. Archform comparisons between skeletal class II and III malocclusions[J]. PLoS One, 2014, 9(6): e100655.
[3] Suk K E, Park J H, Bayome M, et al. Comparison between dental and basal arch forms in normal occlusion and Class III malocclusions utilizing cone-beam computed tomography[J]. Korean J Orthod, 2013, 43(1):15-22.
[4] Slaj M, Spalj S, Pavlin D, et al. Dental archforms in dentoalveolar Class I, II and III[J]. Angle Orthod, 2010, 80(5): 919-924.
[5] Strang R H W. Factors of influence in producing a stable result in the treatment of malocclusion[J]. Am J Orthod Oral Surg, 1946, 32(6):313-332.
[6] Gupta D, Miner R M, Arai K, et al. Comparison of the mandibular dental and basal arch forms in adults and children with Class I and Class II malocclusions[J]. Am J Orthod Dentofacial Orthop, 2010,138(1):10-11.
[7] Chen F, Terada K, Yang L, et al. Dental arch widths and mandibular-maxillary base widths in Class III malocclusions from ages 10 to 14[J]. Am J Orthod Dentofacial Orthop, 2008, 133(1): 65-69.
[8] Shu R, Han X, Wang Y, et al. Comparison of arch width, alveolar width and buccolingual inclination of teeth between Class II division 1 malocclusion and Class I occlusion[J]. Angle Orthod, 2013, 83(2): 246-252.
[9] Bayome M, Sameshima G T, Kim Y, et al. Comparison of arch forms between Egyptian and North American white populations[J]. Am J Orthod Dentofacial Orthop, 2011, 139(3): e245-e252.
[10] Ball R L, Miner R M, Will L A, et al. Comparison of dental and apical base arch forms in Class II Division 1 and Class I malocclusions[J]. Am J Orthod Dentofacial Orthop, 2010, 138(1): 41-50.
[11] Ronay V, Miner R M, Will L A, et al. Mandibular arch form: the relationship between dental and basal anatomy[J]. Am J Orthod Dentofacial Orthop, 2008, 134(3): 430-438.
[12] Zou W, Jiang J, Xu T, et al. Relationship between mandibular dental and basal bone arch forms for severe skeletal Class III patients[J]. Am J Orthod Dentofacial Orthop, 2015, 147(1): 37-44.
[13] Kim J, Lee J. Three dimensional structural analysis between dental arch and basal bone in normal occlusion[J]. Korean J Orthod, 2011,41(4):224-236.
[14] 龚江，石培春，李春燕. 巧用Excel解决多元非线性回归分析[J]. 农业网络信息, 2011，(1):46-48.
[15] 郁引飞，苏银法，金瓯. 利用SPSS和Excel拟合血管外给药药动学参数的效果比较[J]. 中国医院药学杂志, 2007, 27(4): 425-428.
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