Browse > Article

THREE-DIMENSIONAL ANALYSIS OF THE NORMAL DENTITION AND EDENTULOUS MAXILLA OF KOREANS  

Kim Hyeong-Seop (Department of Advanced prosthodontics, Graduate School of Clinical Dentistry, Korea University)
Shin Sang-Wan (Department of Advanced prosthodontics, Graduate School of Clinical Dentistry, Korea University)
Publication Information
The Journal of Korean Academy of Prosthodontics / v.43, no.2, 2005 , pp. 191-203 More about this Journal
Abstract
Statement of problem. In Korea, the preliminary impression trays for dental and edentulous maxillae are manufactured on the base of the statistical value of Westerners. There had been less study on the dental and edentulous arches of Koreans. Purpose. The purpose of this study was to evaluate an average dental cast, preliminary impression trays, three-dimensional relation of dental and edentulous maxilla of Koreans Material and methods. The subjects for this study were 173 dental casts of maxilla (dental: 52, edentulous : 146) with ages $18\{\sim}60$ years old. Each of the master casts was measured 69 measuring points on the dental cast or maxilla, and 46 measuring points on the edentulous cast of maxilla with three-dimensional digital measuring machine. Each measuring points were analysed and were overlapped, that three dimensional dental graphic manufactured by CAD/CAM system. Results. 1. A standard of distribution to alveolar bone were width between left and right buccal border lines of the standard 3/4 line. The mean value of dental and edentulous casts were 67.27mm, 63.49mm respectively. 2. Morphological classification of dental casts were divided into three groups or V-shape, O-shape, U-shape, that proportion of distribution were 17%, 16%, 67%, respectively. Dimensional classification of the dental casts were divided into five groups of less than 63mm, 63 up to 65mm, 65 up to 67mm. 67 up to 69mm, more than 69mm, respectively. 3. Morphological classification of edentulous casts were divided into three groups or V-shape, O-shape, U-shape, that proportion of distribution were 18%, 17%, 65%, respectively Dimensional classification of the edentulous casts were divided into five groups of less than 57mm, 57 up to 61mm, 61 up to 65mm, 65 up to 69mm, more than 69mm, respectively. 4. Mean dental and edentulous cast of maxilla were overlapped, the proportion of bone resorption to alveolar bone is higher than that of palatal bone, its difference were higher anterior 2/4 area than posterior 3/4 area. Conclusion. It obtains information of preliminary impression trays for dental and edentulous maxilla of Koreans.
Keywords
Three-dimensional analysis; CAD/CAM system; Five groups; Impression tray;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Parkinson CF. Similarities in resorption patterns of maxillary and mandibular ridges. J Prosthet Dent 1978;39:598-602   DOI   PUBMED   ScienceOn
2 Tallgren A. Alveolar bone loss in denture wearers as related to facial morphology. Acta Odontol Scand 1970;28:251-70   DOI   PUBMED   ScienceOn
3 Nedelman CI, Bernick S. The singnificance of age changes in human alveolar mucosa and bone. J Prosthet Dent 1978;39:495-501   DOI   ScienceOn
4 Kim MY, Choi DG, LEE SB, Gweon OR. Manufacture of; maxillary preliminary irnpression tray for edentulous maxilla on Koreans. A treatise on Kyunghee dental University 1999;21(1):59-76
5 Kang NH, Choi DG. An analysis of edentulous mandible on Koreans for preliminary impression tray. J Korean Acad of Stomatognathic function and occlusion 1999;15(2):191-214
6 Wical KE, Swoope CC. Studies of residual ridge resorption. Part II. J Prosthet Dent 1974;32:13-22   DOI   ScienceOn
7 Song DS, Kang SG, Cho HW, Dong JG. An analysis for manufacture of dentate preliminary impression tray on Koreans. J Korean Acad Prosthodont 1996;34(4):755-79
8 Berg H, Carlsson GE, Helkimo M. Changes in shape of posterior parts of upper jaws after extraction of teeth and prosthetic treatment. J Prosthet Dent 1975;34:262-8   DOI
9 Baylink DJ, Wegedal JE, Yamamoto K. Manzke E. Systemic factors in alveolar bone loss. J Prosthet Dent 1974;31:486-505   DOI   ScienceOn
10 Choi HY, Woo IH, Choi DG, Arch shape analysis of edentulous alveolar ridge. J Korean Acad Prosthodont 1991;29(1):73-90
11 Cho KO. Maxillary dental arch and palate analysis on a Korea young man. Synthetic medicine 1966;11:79-84
12 Tallgren A The continuing reduction of the residual alveolar ridges in complete denture wearers : a mixed longitudinal study covering 25 years. J Prosthet Dent 1972;27:120-32   DOI   PUBMED   ScienceOn
13 Nishirnula I. Hosokawa R, Atwood DA. The knife edge tendency in mandibular ridges in women. J Prosthet Dent 1992;67(7):820-6   DOI   ScienceOn
14 Atwood GA, Reduction of residual ridges. J Prosthet Dent 1971;26:266-79   DOI   PUBMED   ScienceOn
15 Bergman B, Carlsson GE. Clinical longterm study of complete denture wearers. J Prosthet Dent 1985;53:56-61   DOI   ScienceOn
16 Zarb GA, Bolender CL, Carlsson GE. Boucher's Prosthodontic Treatment for Edentulous Patients. 11th ed., The C.V. Mosby Co.,Louis 1999;23-4
17 Ejvind Budtz-Jorgensen, Zarb GA Bolender CL, Carlsson GE. Boucher's Prosthodontic Treatment for Edentulous Patients. 11th ed., The C.V. Mosby Co., Louis 1999;11:40-1
18 Miles AEW. Changes in oral tissues with advancing age. Proc R Soc Med 1972; 65:801-6   PUBMED
19 Seo JS, Choi DG. An analysis of edentulous maxilla on Koreans for preliminary impression tray. J Korean Acad of Stomat-ognathic function and occlusion 1999;15(2):231-48
20 Oh YR, Lee SB, Park NS, Choi DG, An analysis about maxillary dental arch shape on adult Koreans. J Korean Acad Prosthodont 1995;33(4):753-68
21 Yu JD. An anthropological analysis about dental arch on Koreans. J Korean Dent Acad 1975;13:533-8
22 Kelsey CC. Alveolar bone resorption under complete dentures. J Prosthet Dent 1971; 25:152-61   DOI   PUBMED   ScienceOn
23 Solar P, DIm CW, Thornton B, Matejka M. Sex-related differences in bone mineral density of atropic mandibles. J Prosthet Dent 1994;71(4):345-9   DOI   ScienceOn
24 Nam JH, Lee KS. An analysis about mandibular dental arch on normal dentition of Koreans. J Korean Acad Orthodont 1996;26:535-64
25 Jaime, Poetrkovski. The bony residual ridge in man. J Prosthet Dent 1993; 34(4):456-62