Evaluation of apical cavity preparation with a new type of ultrasonic diamond tip.
This study evaluated the time, occurrence of fracture, and quality of apical cavity preparation with three different ultrasonic diamond tips: Satelec, Trinity, and a new type, CVD (chemical vapor deposition), using scanning electron microscopy (SEM) analysis. Thirty human single-rooted premolars were selected, submitted to apicectomy, and prepared with ultrasonic tips; impressions were then obtained. The presence of fractures was evaluated on the impressions, and the quality of preparation was evaluated by SEM analysis of teeth and scoring by two examiners. The group prepared with the CVD tips exhibited the shorter preparation time and did not present fractures. There was no statistically significant difference in the quality of preparation for the three tips. The three brands of ultrasonic tips produced adequate grinding without altering the morphology of the apical foramen.
Bernardes
Ricardo A
RA
Department of Endodontics, Bauru Dental School, University of São Paulo, Al. Dr. Otávio Pinheiro Brisolla 9-75, CEP 17012-901 Bauru, SP, Brazil. dr.ricardoaffonso@uol.com.br
de Moraes
Ivaldo G
IG
Garcia
Roberto B
RB
Bernardineli
Norberti
N
Baldi
Jarcio V
JV
Victorino
Fausto R
FR
Vasconcelos
Bruno C
BC
Duarte
Marco A H
MA
Bramante
Clovis M
CM
D001047:Apicoectomy; D001641:Bicuspid / Q000648:ultrastructure; D003786:Dental Pulp Cavity / Q000293:injuries / Q000648:ultrastructure*; D018130:Diamond; D004867:Equipment Design; D006801:Humans; D008422:Materials Testing; D008855:Microscopy, Electron, Scanning; D018915:Root Canal Preparation / Q000295:instrumentation*; D013499:Surface Properties; D013997:Time Factors; D019227:Tooth Apex / Q000293:injuries / Q000648:ultrastructure*; D014464:Ultrasonic Therapy / Q000295:instrumentation*
D018130:Diamond