Home > Journals > Minerva Stomatologica > Past Issues > Minerva Stomatologica 2011 January-February;60(1-2) > Minerva Stomatologica 2011 January-February;60(1-2):15-23

CURRENT ISSUE
 

ARTICLE TOOLS

Reprints

MINERVA STOMATOLOGICA

A Journal on Dentistry and Maxillofacial Surgery


Official Journal of the Italian Society of Odontostomatology and Maxillofacial Surgery
Indexed/Abstracted in: CAB, EMBASE, Index to Dental Literature, PubMed/MEDLINE, Scopus, Emerging Sources Citation Index


eTOC

 

ORIGINAL ARTICLES  


Minerva Stomatologica 2011 January-February;60(1-2):15-23

Copyright © 2011 EDIZIONI MINERVA MEDICA

language: English

Evaluation of the dentin-pulp complex after cavity preparation with ultrasonic diamond tip

Monti Lima L. 1, Baffi Diniz M. 1, Aparecida Seccani Galassi M. 2, Toledo De Oliveira Ramalho L. 3, Dos Santos-Pinto L. 1

1 Department of Pediatric Dentistry, Dental School of Araraquara, São Paulo State University (UNESP), Araraquara, SP, Brazil; 2 Dental School, Educational Foundation of Barretos (FEB), Barretos, SP, Brazil; 3 Department of Morphology, Dental School of Araraquara, São Paulo State University (UNESP), Araraquara, SP, Brazil


PDF  


AIM: The aim of this paper was to compare the dentin-pulp complex response to cavity preparation in human teeth using ultrasonic chemical vapor deposition (CVD) diamond tip and high-speed diamond bur.
METHODS: Class V buccal cavities were randomly prepared in 40 premolars from 14 patients aged 11 to 15 years. The cutting time was recorded and the cavities had the axial walls protected with gutta-percha and were filled with glass ionomer cement. The teeth were extracted at intervals of 0, 5, 10 and 20 days, and were decalcified, sectioned and stained by Hematoxylin & Eosin, Masson’s Trichrome and Brown & Brenn techniques. The inflammatory response and cell disorganization were blindly evaluated by two examiners. The remaining dentin thickness (RDT) was measured by a linear scale using computer software. Statistical analysis by one-way ANOVA showed no statistically significant difference (P≤0.05) among the cavities prepared with either type of instrument, with mean RDT of 1132.50 mm. Cutting time and the pulp-dentin complex responses were analyzed statistically by Kruskal-Wallis and Dunn tests (P≤0.05).
RESULTS: The ultrasonic CVD diamond tip took 5 times longer to prepare the cavities and there were no typical inflammatory pulp responses in cavities prepared with either type of cutting instrument, only mild to moderate cell disorganization was present.
CONCLUSION: Even taking longer to cut the dental substrate, the ultrasonic CVD diamond tip produced similar pulp response compared to the conventional high-speed diamond bur.

top of page

Publication History

Cite this article as

Corresponding author e-mail

lulima@yahoo.com