Avtor/Urednik		Krapež, Jana; Fidler, Aleš
Naslov		Location and dimensions of access cavity inpermanent incisors, canines, and premolars
Tip		članek
Vol. in št.		Letnik 16, št. 5
Leto izdaje		2013
Obseg		str. 404-407
ISSN		0974-5203 - Journal of conservative dentistry : JCD
Jezik		eng
Abstrakt		Background: Ideal access cavity assures unobstructed straight-line access to the apical third of the root canal and preservestooth structure. Aim: The aim of the study was to determine the location and dimensions of access cavity with straight-line access in incisors,canines, and premolars and to evaluate the largest diameter of their root canals in the mesiodistal and vestibulooral direction. Materials and Methods: Twenty extracted teeth of each group were randomly selected and digitally radiographed from themesiodistal and vestibulooral direction. Position of the straight-line access midline in relation to anatomical landmarks (incisaledges, fissures, and cusps) was recorded. The largest diameters in mesiodistal and vestibulooral direction were measured. Relative frequencies of access position and mean and standard deviation of both diameters were calculated. Results: For the anterior teeth, the predominant location of straight-line access was from incisal edge, except for maxillarycentral incisors, where location was equally distributed between incisal edge and oral surface. In mandibular premolars, thestraight-line access was positioned vestibular from central fissure. In mesiodistal direction, the largest diameter was found formaxillary central incisors and canines (1.54 mm), while the smallest diameter was found for mandibular incisors (0.64 mm).In vestibulooral direction, the largest diameter was found for maxillary first premolar (5.28 mm), while the smallest diameterwas found for maxillary lateral incisor (1.39 mm).Conclusions: Knowledge of location and size of access cavity facilitates achieving balance between straight-line access to theapical third of the root canal and preservation of tooth structure.
Proste vsebinske oznake		bicuspid canine dental pulp cavity incisor premolar