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Journal of Craniomaxillofacial Research، جلد ۶، شماره ۳، صفحات ۱۲۲-۱۲۸
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عنوان انگلیسی Evaluation of the curve of spee, curve of wilson and monson’s sphere in Iranian adults
چکیده انگلیسی مقاله Purpose: One of the required information in rehabilitating the occlusal plane in dentistry is the radius of Monson’s sphere, which like other anatomical indices varies in different races. The purpose of this study was to determine the radius of the Monson’s sphere in a group of Iranian. Materials and Methods: 45 Iranian subjects (19 males & 26 females) aged from 18 to 25 were selected for this study. The x,y,z coordinates of cusp tips of all mandibular teeth except for the third molars obtained with a 3-dimensional digitizer, were used to derive a spherical model of the occlusal surfaces’ curvature. From the best interpolating sphere, the radii of the Monson’s sphere was computed. Results: Although all of the computed variables were greater in men, the occlusal curvature of mandibular arch was not influenced by gender. The mean radius of the Monson’s sphere was 111.5mm (121mm in men and 104mm in women which was closer to the classic value of 4 inch, confirming Monson’s observations). Conclusion: The average radius of the Monson’s sphere in this study was greater than the classic 4 inch value proposed by Monson and this result may suggest racial differences in the normal dental arch form that is important in occlusal rehabilitation. Although more researches are necessary in future to improve treatment results. Keywords: Occlusal plane; Monson’s sphere; Curve of spee; Curve of wilson; 3-dimensional digitizer; Iranian adults.
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نویسندگان مقاله | Mahdie Chavoshzadeh Natanzi
School of Dentistry, Shahed University, Tehran, Iran.


| Maryam Azimi Zavaree
Department of Prosthodontics, School of Dentistry, Shahed University, Tehran, Iran.


| Mehran Torabi
Center of Excellence for Railway Engineering, Sciences and Technology University, Tehran, Iran.


| Farnaz Taghavi Damghani
Department of Prosthodontics, School of Dentistry, Shahed University, Tehran, Iran.


| Seyed Mohammad Reza Hakimaneh
Department of Prosthodontics, School of Dentistry, Shahed University, Tehran, Iran.


| Sayed Shojaedin Shayegh
Department of Prosthodontics, School of Dentistry, Shahed University, Tehran, Iran.


| Farnoosh Taghavi Damghani
Department of Prosthodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
نشانی اینترنتی http://jcr.tums.ac.ir/index.php/jcr/article/view/304
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