Volume 22, Issue 4 (January 2015)                   J Birjand Univ Med Sci. 2015, 22(4): 359-367 | Back to browse issues page


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hashemzehi M, Assadian H, Abbasi K, Morshedi E, Teimoori M, Hamzelouei Moghadam E. The study of prevalence of maxillary incisor forms among dentist faculty students and patients of Shahed University: 2014. J Birjand Univ Med Sci.. 2015; 22 (4) :359-367
URL: http://journal.bums.ac.ir/article-1-1793-en.html

1- Post graduate student, Department of Endodontics School of Dentistry, Shahed University, Tehran, Iran.
2- Assistant Professor , Department of Endodontics School of Dentistry, Shahed University, Tehran, Iran.
3- Post graduate student, Department of prosthodontics School of Dentistry, Shahed University, Tehran, Iran.
4- Post graduate student, Department of Endodontics School of Dentistry, Shahed University, Tehran, Iran. , hamzelouei@yahoo.com
Abstract:   (3153 Views)

Background and Aim: Selecting the appropriate form of anterior teeth in patients without teeth is important factor in restoring the missing beauty of the patient. For this purpose, the study of natural teeth in terms of investigating the relationship between dimensions and forms and its prevalence in the Iranian community is essential.

Materials and Methods: This analytic and descriptive study was done with participation of 300 eligible patients and students with different genders. Where a maxillary impression was taken and poured in yellow stone. They were measured for length and 3 horizontal distances on the upper incisor consisting of cervical width, middle width and incisal width, by digital caliper with 0.01mm accuracy, and the prevalence of tooth form determined. Normal distribution variables were analyzed with logistic regression.

Results: Analysis indicated that Average length and width of the maxillary central incisor in order is 9.12 ± 0.87 mm and is 8.44 ± 0.59 mm and average ratio of length and width is 0.92 ± 0.08 mm Horizontal and vertical dimensions of the clinical crown in the men slightly more than women, and the prevalence of tooth form thus obtained: oval incisior (53%), tapered-square (21.3%), tapered (16.7%), and square (9%).  A significant correlation only could be shown between shape and width (p<0.05).

Conclusion: With increasing the width of the central maxillary tooth, oval shape was observed more frequently than square form. Meantime of choosing dental form, oval form considered more because of its high incidence.

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Subject: Dentistry
Received: 2015/01/16 | Accepted: 2015/08/1 | Published: 2016/05/2

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