Browse > Article

Clinical crown angulation and inclination of normal occlusion in a large Korean sample  

Lee, Shin-Jae (Department of Orthodontics and Dental Research Institute, School of Dentistry, Seoul National University)
Ahn, Sug-Joon (Department of Orthodontics and Dental Research Institute, School of Dentistry, Seoul National University)
Kim, Tae-Woo (Department of Orthodontics and Dental Research Institute, School of Dentistry, Seoul National University)
Publication Information
The korean journal of orthodontics / v.35, no.5, 2005 , pp. 331-340 More about this Journal
Abstract
Angulation and inclination of clinical crown is important for diagnosing, treatment planning and developing convenient orthodontic attachments. The aim of the study was to establish normative data with higher reliability on the angulation and inclination of clinical crown of Koreans with normal occlusion This study employed the dental casts of 307 (male. 187: female. 120) adult normal occlusion samples. The angulation and inclination of clinical crown were measured by set-up model checker In order to ensure reliability, intra- and inter-rater error were evaluated 3 times The resultant data obtained had excellent reliability however when compared with the previous data as well as with gender difference, clinically significant interpretation was impossible because the whithin-dataset normal variation was High which was common pattern of angulation and inclination measuring data of previous research The result of this biometric study seemed 4o suggest more substantive design of the multivariate. high-dimensional interpretation methodology of these normal variation is required if more compatible orthodontic appliance could be developed.
Keywords
Crown angulation; Crown inclination; Reliability test; Normal variation;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Ricketts RM. Bioprogressive therapy as an answer to orthodontic needs, part I. Am J Orthod 1976:70:241-68   DOI   PUBMED   ScienceOn
2 Schwaninger B. Evaluation of the straight arch wire concept. Am J Orthod 1978:74:188-96   DOI   PUBMED   ScienceOn
3 Jeong DY, Sohn BH, Park YC. A study of the crown inclination in normal occlusions. Korean J Orthod 1986;16:155-66
4 Park OJ, Lee DJ, A study on the bracket slot torque degrees in Korean. Korean J Orthod 1987;17:247-54
5 Kim JS, Jin KH, Hong SJ, A statistical study of clinical crown inclination in Korean's naturally occurring optimal occlusion. Korean J Orthod 1992;22:715-35
6 Ko SD, Cha KS. A study on the labial and buccal surface contour in Korean permanent teeth using three-dimensional laser scanning. Korean J Orthod 2002;32:275-91
7 Lee SJ, Kim TW, Nahm DS. Transverse implications of maxillary premolar extraction in Class III presurgical orthodontic treatment. Am J Orthod Dentofacial Orthop (in press)
8 Dahlberg G. Statistical methods for medical and biological students. New York: Interscience Publishers; 1940. p. 122-32
9 Fleiss JL, The design and analysis of clinical experiments. New York: John Wiley & Sons; 1985. p. 8
10 Wiechmann D. Lingual orthodontics (part 1): laboratory procedure. J Orofac Orthop 1999;60:371-9   DOI   ScienceOn
11 BeGole EA. Statistics for the orthodontist. In: Graber TM. Vanarsdall RL editors. 3rd Edition, Orthodontics: current principles and techniques. St. Louis: Mosby; 2000. p. 339-52
12 Sim EJ, Hwang HS, Moon JD. A study on the error of tooth size measurements. Korean J Orthod 1999;29:491-501
13 Lee SJ, Moon SC, Kim TW, Nahm DS, Chang YI. Tooth size and arch parameters of normal occlusion in a large Korean sample, Korean J Orthod 2004;34:473-80
14 Richmond S, Klufas ML, Sywanyk M. Assessing incisor inclination: a non-invasive technique. Eur J Orthod 1998;20:72-6
15 Park YC. A morphologic study on straight wire bracket for Korean. Korean J Orthod 1991;21:481-94
16 Kim JY, Lee SJ, Kim TW, Nahm DS, Chang YL. Classification of the skeletal variation in normal occlusion. Angle Orthod 2005;75:311-9   PUBMED
17 Andrews LF. Straight wire: The concept and appliance. San Diego: LA Wells; 1986. p. 14-31
18 Vardimon AD, Lambertz W. Statistical evaluation of torque angles in reference to straight-wire appliance (SWA) theories. Am J Orthod 1986;89:56-66   DOI   ScienceOn
19 Yoon JJ, Sohn BW. A study of the crown angulation in normal occlusion. Korean J Orthod 1986;16: 123-34
20 Roth RH. Straight wire mechanics syllabus. Burlington: Foundation for Advanced Continuing Education; 1978
21 Fillion D, Leclerc JF. Lingual orthodontics: why is it progressing? Orthod Fr 1991;62:793-801   PUBMED
22 Jeon SB, Kim JB, Shon WS. A cephalometric study on mesiodistal axial inclination of posterior teeth in open bite and deep bite. Korean J Orthod 1993;233:91-403
23 Dellinger EL. A scientific assessment of the straight-wire appliance. Am J Orthod 1978;73:290-9   DOI   PUBMED   ScienceOn
24 Chang YI, Yang WS, Nahm DS, Moon SC. A study for the development of the Korean orthodontic bracket. Korean J Orthod 2000;30:565-78
25 Andrews LF. The straight-wire appliance. Origin, controversy, commentary. J Clin Orthod 1976;10:99-114   PUBMED
26 Root TL. The level anchorage system from correction of orthodontic malocclusion. Am J Orthod 1981:80:395-409   DOI   PUBMED   ScienceOn
27 Lim SH, Yoon YJ, Kim KW. Crown angulations of posterior teeth of normal occlusion measured from marginal ridge plane. Korean J Orthod 1998;28:731-40
28 Kim SJ, Park SY, Woo HH, Park EJ, Kim YH, Lee SJ et al. A study on the limit of orthodontic treatment. Korean J Orthod 2004;34:239-45
29 Kwon OW, Hwang HS. A new method of tooth positioner fabrication using modified TARG to measure the inclination and angulation of individual teeth. Korean J Orthod 1999;29:137-46.
30 Norman GR. Streiner DL. Biostatistics: the bare essentials. St. Louis: Mosby; 1996, p. 40-8
31 Oh CK, Yoon YJ, Kim KW. The compensatory adaptation of anterior teeth according to the skeletal relation. Korean J Orthod 2000;30:175-84
32 Lee DJ, Oriental bracket. Korean J Orthod 1991;21:495-500
33 Chang YJ, Kim TW, Yoo KH. The effect of variations in the vertical position of the bracket on the crown inclination. Korean J Orthod 2002;32:401-11
34 Janson G. Bombonatti R, Cruz KS, Hassunuma CY, Delsanto M Jr. Buccolingual inclinations of posterior teeth in subjects with different facial patterns. Am J Orthod Dcntofacial Orthop 2004;12.5:316-22
35 Brunette DM, Critical thinking: Understanding and evaluating dental research, Chicago: Quintessence Publishing; 1996. p. 99-112