open access
메뉴
open access
메뉴
ISSN : 0376-4672
Objectives: The aim of this study was to assess the morphologic characteristics of two types of stainless steel crowns (SSCs) for the first primary molar using a 3D scanner. Study design: Two types of SSCs, KIDS CROWN (KC) and 3M ESPE ND-96 (ND), for the first primary molars were scanned using a 3D scanner. The mesiodistal and buccolingual diameters at the height of the contour and the cervical margin, occlusocervical diameters on the mesial, distal, buccal, and lingual aspects were measured, and the crown shape ratio, the smooth surface crown height ratio, and the cervical convergence were calculated. Results: In the crown shape ratio of the mandibular SSC, KC was larger buccolingually compared with ND. In the smooth surface crown height ratio, ND was larger than KC in all of the maxilla and mesial, distal, and lingual aspects of the mandible. ND was more convergent to the cervical mesiodistally and buccolingually compared with KC. Conclusion: In the superimposed images of the maxillary SSC, the mesiolingual and distolingual line angles of KC were more prominent compared with ND. In the mandible, ND demonstrated higher cusps and more obvious buccal developmental lobes than KC. ND showed a larger cervical undercut than KC.
1. Humphrey WP. Use of chrome steel in children’s dentistry. Dental Survey 1950;26: 945-949.
2. Pinkham JR, Casamassimo PS, Fields HW, McTigue DJ, Nowak A. Pediatric dentistry: Infancy through adolescence. 4th ed. WB Saunders Co., Philadelphia; 357, 2005.
3. Cha MH, Kim JT, Son DS. Dental anatomy of deciduous teeth. Iwoo Moonhwasa, Seoul, Korea;56-70, 1999.
4. Dean JA, Avery DR, McDonald RE. Dentistry for the child and adolescent. 9th ed. Mosby, St. Louis; 44, 2011.
5. Korean Academy of Pediatric Dentistry. Pediatric Dentistry. 4th ed. Shinhung International, Seoul, Korea; 68-70, 2007.
6. Tsai HH. Morphological characteristics of the deciduous teeth. J Clin Pediatr Dent 2001;25:95-101.
7. Choi JE, Cheong TS, Kim S. A morphometric study on the primary molars and preformed stainless steel crown. J Korean Acad Pediatr Dent 2001;28:355-362.
8. Moorrees CF, Thomsen SO, Jensen E, Kai-Jen Yen P. Mesiodistal crown diameters of the deciduous and permanent teeth in individuals. J Dent Res 1957;36:39-47.
9. Vela E, Taylor RW, Campbell PM, Buschang PH. Differences in craniofacial and dental characteristics of adolescent Mexican Americans and European Americans. Am J Orthod Dentofacial Orthop 2011;140:839-847.
10. Kook YA, Bayome M, Park SB, Cha BK, Lee YW, Baek SH. Overjet at the anterior and posterior segments: Three-dimensional analysis of arch coordination. Angle Orthod 2009;79:495-501.
11. Jung YJ, Kim MJ, Baek SH. Hard and soft tissue changes after correction of mandibular prognathism and facial asymmetry by mandibular setback surgery: Three-dimensional analysis using computerized tomography. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2009;107:763-771.
12. Lee JB, Kim CC, Han SH, Lee SH. A morphometric study of the maxillary primary first molars using three-dimensional scanner. J Korean Acad Pediatr Dent 2006;33:643-652.
13. Shin YK. A morphometric study of the mandibular primary first molars using three-dimensional scanner. Dissertation, Seoul National University, 2008.
14. Fuller JL, Denehy GE. Concise dental anatomy and morphology. 2nd ed. Mosby Year Book, Chicago;241-244, 1984.
15. Brand RW, Isselhard DE. Anatomy of orofacial structures. 6th ed. Mosby, St. Louis; 481-483, 1998.
16. Tsai HH. Descriptive classification of variations in primary mandibular first molars. ASDC J Dent Child 2001;68:23-26.
17. Axelsson G, Kirveskari P. Crown size of deciduous teeth in Icelanders. Acta Odontol Scand 1984;42:339-343.
18. Baek BJ, Jeon SH, Kim JG, Kim YS. A study on the size of the deciduous teeth. J Korean Acad Pediatr Dent 2002;29:382-387.
19. Ferro R, Besostri A, Olivieri A. Caries prevalence and tooth surface distribution in a group of 5-year-old Italian children. Eur Arch Paediatr Dent 2009;10:33-37.
20. Vanobbergen J, Lesaffre E, Garcia-Zattera MJ, Jara A, Martens L, Declerck D. Caries patterns in primary dentition in 3-, 5- and 7-year-old children:spatial correlation and preventive consequences. Caries Res 2007;41:16-25.
21. Guelmann M, Bookmyer KL, Villalta P, Garcia-Godoy F. Microleakage of restorative techniques for pulpotomized primary molars. J Dent Child (Chic)2004;71:209-211.