Local disruption and disorganization of the odontoblast layer was detected in 50% of the specimens on the third day (Table 1), together with inflammatory infiltrate that was even more prominent subjacent to the cavity preparation
Ozer, "In vitro assessment of temperature change in the pulp chamber during cavity preparation
," The Journal of Prosthetic Dentistry, vol.
Within the current pilot study, the objective was to assess the development of two cavity techniques with both tasks designed to teach a Class II cavity preparation
Pulpal response to cavity preparation
by an erbium, chromium:YSGG laser-powered hydrokinetic system.
Two operative dentistry procedures were chosen for the study; a class I cavity preparation
for amalgam restoration on tooth # 46 (permanent first right mandibular molar) and a class II (occluso-mesial) preparation for amalgam restoration on a separate tooth # 46.
an acceptable treatment for the management of caries when traditional cavity preparation
and/or placement of traditional dental restorations are not possible.
Despite the fact that more than 50 years ago bur-less techniques were proposed for cavity preparation
starting with a first generation of an air abrasion engine, it is thanks to the current refined caries diagnosis and the appropriate adhesive dentistry that more attention is paid to micro preparations.
A DVD is also included, containing plates of coronal cavity preparation
and video presentations of seven techniques.
Also covered are noninvasive methods of cavity preparation
such as sonic techniques and the use of lasers.
is quicker, more precise, and less traumatic with modern electrical technology than is possible with air turbines.
From the above results it is quite evident that cavity preparation
& restoration brings about a significant reduction in the strength & fracture resistance  of a tooth when compared to normal tooth, as shown by the values (Table 1 & 2) obtained by the control groups, namely, intact teeth & unrestored teeth.
Generally, cavity preparation
using Er:YAG laser takes more time compared to rotary cutting instruments.