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We're a creative community with a mission: To rescue all inspiring and beautiful pictures (and videos) lost in the depths of the web. Poonam Bali 1 , Satnam Singh 2 , Arvinder Pal Singh 3 , Ram Rattan Goyal 4 1 Associate Professor, Dept. Statement of problem One of the primary concerns in denture esthetics is the selection of appropriate mesiodistal width of maxillary central incisors. Conclusion : The results of the present study suggest that inner canthal distance and geometric progression may be a reliable predictor of the width of the maxillary central incisor.
One of the difficult aspects of complete denture prosthodontics is the selection of appropriately sized maxillary anterior teeth, especially the central incisors. The mesiodistal width of central incisor can be determined by certain anthropometric measurements of face. Another anthropometric measurement of face is the distance between inner canthus of the eyes. A proportion between two adjacent parts which is repeated across, enhances the unity within the diverse parts of a composition, and Lombardi[9] states that when this repeated ratio is equal to the Golden Mean, the composition is said to be esthetic. If, in a sequence of terms, the ratio between 2 consecutive terms is consistent, it is said to be in geometric progression (GP).
Table- 1 : Mean Inner Canthal Distance And Mean Mesiodistal Width Of Maxillary Central Incisor Using Innercanthal Distance (ICD) And Geometric Progression (GP). As the subjects were from the same population, the results of this study are more applicable to the Indian population. The results of the present study suggest that ICD and Geometric prorression may be a reliable predictor of the width of the maxillary central incisors. And you mean so much to me!Distance means so little when someone Profile Facebook CoversDistance Means So Little When Someone Means So Much.
Of Prosthodontics - Teerthanker Mahaveer Dental College & Research Centre2 Senior Lecturer, Dept. Aim To examine the relationship between inner canthal distance and maxillary central incisor mesiodistal width in terms of geometric progression popularly known a golden proportion. The mesiodistal width of each maxillary central incisor was measured between its interproximal contact points.


Interpretation and extrapolation of the results may be tempered, by an acknowledgement of the study limitation. When no pre extraction records are available, selecting the proper anterior teeth size for edentulous patients can be difficult[1].
Scandrett et al[2] have also studied the relationship between width of maxillary anterior teeth and the central incisor to that of intercommisural width, bizygomatic width, sagital cranial diameter and philtrum width. The inner canthal distance (ICD) is defined as the distance between the medial angles of the palpebral fissure[3].
Any finite line can be arbitrarily divided into two segments by a point and a ratio of the smaller segment to the larger, and the ratio of the larger to the entire segment can be calculated. The width of maxillary central incisor is in golden proportion to the width of lateral incisor, and the width of the lateral incisor is in golden proportion to the width of canine[8].
The perforations were joined by a straight line, which was measured to an accuracy of 0.1mm by a digital caliper.
In the present study, all the tooth dimension were significantly higher in males than in females.
Interpretation and extrapolation of the results may be tempered, however, by an acknowledgment of the study’s limitations. A clinical evaluation of techniques to determine the combined width of the maxillary anterior teeth and the maxillary central incisor. Inter-commisural width in 4 racial groups for the selection of maxillary anterior teeth in complete dentures. Of Orthodontics - Institute Of Dental Sciences And Research Centre , Jammu3 Professor, Dept. The inner canthal distance was measured from medial angle to medial angle of the palpebral fissures of the eyes. Only one ethnic group (Indian) was evaluated, and subjects were chosen with a specific age range. These investigators hypothesized that two or more of these predictor variables would provide a better prediction of maxillary tooth width than any of them individually. Laestadius et al[4] reported that in 78% of the population evaluated, the ICD was attained by the time the subject was 1 year old. The purpose of this study was to determine the relationship between inner canthal distance and the mesiodistal width of the maxillary central incisors in terms of geometric progression. Young adults were selected because the ICD is established by 1 year of age, after which the rate of growth in the area is slow in contrast to the outer orbital dimensions[4].


As the inner canthal distance was greater than the combined widths of the maxillary central incisors, it was multiplied by 0.618. A paired t test revealed no significant difference between the mean width of natural tooth and its calculated size.
Only one ethnic group (Indian) was evaluated, and the subjects were selected within a narrow age range. Of Conservative Dentistry - Institute Of Dental Sciences And Research Centre, Jammu4 Professor, Dept. The actual and calculated width of maxillary central incisors was found to be highly correlated (r=0.96). Subsequently, the growth rate in that area was slow in contrast to the outer orbital dimensions.
Subjects with caries, restorations, severe attrition, congenital facial defects, orthodontic or crown restorations were excluded.
The contact areas of central incisor was chosen, as the width is maximum at these contact areas; which was in accordance with the statement made by Wheeler[13]. The product was then divided by 2 to obtain the width of a single maxillary central incisor. The previous anthropometric parametric measurements have not been evaluated with geometric progression[5] to determine proportionality between them and maxillary central incisor width.
The combined mesiodistal width of maxillary central incisors, thus obtained was divided by 2 to obtain the mesiodistal width of a single tooth. A “t” test was used to identify any significant differences in the mesiodistal tooth width and inner canthal distance by gender. Ltd.] Instructions by the manufacturer regarding powder water ratio [22gms of powder and 57ml of water approximately] and mixing of alginate material and dental stone were precisely followed. Agreement between the measured and calculated central incisor widths was evaluated with Pearson’s correlation coefficients as was intraexaminer reliability.
The mesiodistal width of maxillary central incisor was measured on the cast as done intraorally.



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