Regression methods to investigate the relationship between facial measurements and widths of the maxillary anterior teeth

Abstract

Using regression methods, the widths of the anterior teeth within the population tested may be predicted by a combination of the facial dimensions studied.

The significance of biometric parameters in determining anterior teeth width

“…Discussions on this topic are very present in the contemporary professional literature 2,7,8,[11][12][13][14][15][16][17][18][19][20][21][22] . Reviews of the recent scientific literature reveal studies that were carried out using different methodology and sample size, different face and natural teeth parameters 8, 10, 11-13, 15, 19, 20 , casts 5, 16-18, 21, 22 , or photographs 5,14,16,17,20 , as well as various types of gauges which makes the comparison of results very difficult.…”

“…Reviews of the recent scientific literature reveal studies that were carried out using different methodology and sample size, different face and natural teeth parameters 8, 10, 11-13, 15, 19, 20 , casts 5, 16-18, 21, 22 , or photographs 5,14,16,17,20 , as well as various types of gauges which makes the comparison of results very difficult. Various face parameters such as bizygomatic 5, 10, 11 , interpupillar 5,8,10,11,16 , interalar 5, 8, 11, 14 , 16 , 19-22 and inner canthal distance 9,10,[12][13][14][15][16][17]22 , intercommissural distance 19,22 , width of the upper lip filtrum 9 and nose lengt [20][21][22] have all been proposed as objective guidelines for solving this problem. In the most recent scientific literature, there are different views about the true value of these methods [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21]…”

“…Authors of many recent studies suggest observing people's facial measurements in order to obtain objective guidelines for anterior teeth width selection, and measuring distances between certain reference points of the face 5,[8][9][10][11][12][13][14][15][16][17][18][19][20][21][22] . These points are, as a rule, easily located, although their exact position is often defined differently by different authors.…”

“…These anatomical parameters are: bizygomatic width (BZW) 5, 10, 11 , interpupillary distance (IPD) 5,8,10,11,16 , intercommissural distance (ICMD) 19,22 , interalar width (IAW) 5,8,11,14,16,[19][20][21][22] , which is defined as the distance between the widest points of the ala of the nose, inner canthal distance (ICD) 9,10,[12][13][14][15][16][17]22 which is defined as the distance between the medial angles of the palpebral fissures, width of the upper lip philtrum (PHULW) 9 and nose length (NL) [20][21][22] . These anatomical parameters are: bizygomatic width (BZW) 5, 10, 11 , interpupillary distance (IPD) 5,8,10,11,16 , intercommissural distance (ICMD) 19,22 , interalar width (IAW) 5,8,11,14,16,[19][20][21][22] , which is defined as the distance between the widest points of the ala of the nose, inner canthal distance (ICD) …”

Mestizo Anterior Teeth's Proportions

“…Together, from central to canine the proportion must be 1.6:1:0.6 (Ricketts). This ratio has also failed in craniofacial measures like interpupilar, intercantal, interalar, intercigomatic to teeth's GP (Gomes et al, 2006;Mizumoto et al, 2009;Al-Marzok et al, 2013;Isa et al, 2010). Moreover, some surveys to computer modified anterior teeth photos have not clear agreement (Rosenstiel et al, 2000;Wolfart et al, 2006;Ker et al, 2008;Cooper et al, 2012).…”