ANATOMY OF CUSPS OF POSTERIOR TEETH AND THEIR FRACTURE POTENTIAL

被引:80
作者
KHERA, SC
CARPENTER, CW
VETTER, JD
STALEY, RN
机构
[1] UNIV IOWA,COLL DENT,DEPT ORTHODONT,IOWA CITY,IA 52242
[2] UNIV CONNECTICUT,CTR HLTH,FARMINGTON,CT 06032
关键词
D O I
10.1016/0022-3913(90)90168-C
中图分类号
R78 [口腔科学];
学科分类号
1003 ;
摘要
Fracture of cusps on posterior teeth, especially those carious or restored, is a major cause of tooth loss. Nonfunctional cusps fracture more often than the functional; mandibular cusps fracture more often than maxillary cusps. This study examined functional and nonfunctional cusps of the maxillary and mandibular posterior teeth in four different parameters: (1) buccolingual width, (2) angle of cuspal inclination, (3) thickness of enamel, and (4) angle of inclination of the dentinoenamel junction. Measurements of functional cusps, except those in maxillary premolars, established differences that may explain the frequency of fracture. These parameters of functional and nonfunctional cusps suggest that the cuspal anatomy has a relationship to the fracture potential of cusps. © 1990 Mosby-Year Book, Inc.
引用
收藏
页码:139 / 147
页数:9
相关论文
共 20 条
  • [1] CUSPAL FAILURES OF MOD RESTORED TEETH
    BELL, JG
    SMITH, MC
    DEPONT, JJ
    [J]. AUSTRALIAN DENTAL JOURNAL, 1982, 27 (05) : 283 - 287
  • [2] BLASER PK, 1983, OPER DENT, V8, P6
  • [3] CRACKED TOOTH SYNDROME - ADDITIONAL FINDINGS
    CAMERON, CE
    [J]. JOURNAL OF THE AMERICAN DENTAL ASSOCIATION, 1976, 93 (05) : 971 - 975
  • [4] AN INVIVO STUDY OF CUSPAL FRACTURE
    CAVEL, WT
    KELSEY, WP
    BLANKENAU, RJ
    [J]. JOURNAL OF PROSTHETIC DENTISTRY, 1985, 53 (01) : 38 - 42
  • [5] CHEN RCS, 1985, THESIS U IOWA IOWA C
  • [6] FRACTURES OF POSTERIOR TEETH IN ADULTS
    EAKLE, WS
    MAXWELL, EH
    BRALY, BV
    [J]. JOURNAL OF THE AMERICAN DENTAL ASSOCIATION, 1986, 112 (02) : 215 - 218
  • [7] PHOTOELASTIC ANALYSIS OF INLAY AND ONLAY PREPARATIONS
    FISHER, DW
    CAPUTO, AA
    SHILLINGBURG, HT
    DUNCANSON, MG
    [J]. JOURNAL OF PROSTHETIC DENTISTRY, 1975, 33 (01) : 47 - 53
  • [8] CLINICAL SURVEY OF FRACTURED TEETH
    GHER, ME
    DUNLAP, RM
    ANDERSON, MH
    KUHL, LV
    [J]. JOURNAL OF THE AMERICAN DENTAL ASSOCIATION, 1987, 114 (02) : 174 - 177
  • [9] DETERMINATION OF MOISTURE-CONTENT OF VITAL AND PULPLESS TEETH
    HELFER, AR
    SCHILDER, H
    MELNICK, S
    [J]. ORAL SURGERY ORAL MEDICINE ORAL PATHOLOGY ORAL RADIOLOGY AND ENDODONTICS, 1972, 34 (04): : 661 - &
  • [10] JEPSEN ARNE, 1963, ACTA ODONTOL SCAND, V21, P35, DOI 10.3109/00016356309019777