Nilkanth M. Phatak

Thermal Pulp Tester: A New Instrument

Considerable attention has been given, in the past, to the response of dental pulp to thermal stimulation.1 6 However, knowledge of normal threshold values and of abnormal pulpal response to temperature change remains limited. The purpose of this paper is to describe temperature-controlling and monitoring equipment that the authors have developed and are now using in testing dental thermal sensitivity and which, we believe, makes practical more accurate studies of response to dental temperature stimulation than have heretofore been achieved. The apparatus was designed and constructed to perform the following three major functions: (1) to deliver water at any desired temperature between approximately O0

Laser-Induced Microperforations in Teeth Sections

SYNOPSIS IN INTERLINGUA MICRO-PERFORATIONES INDUCITE PER LASER IN SECTIONES DE DENTES.—Un methodo a satisfacente reproducibilitate usate in le mesuration del diametro de perforationes presente in mollite sectiones de dentes human post le impingimento a basse energia de fasces de laser a rubino indicava que le variationes incontrate in le diametros del perforationes depende del energia del fasce, del typo e del spissitate del material sub tractamento, del foco, del magnification, del distantia de portata, e del concentration del addite tinctura. Plus grande perforationes esseva producite in adamante cretose (per exemplo in carie incipiente) que in adamante non cretose. Le perforationes producite in dentina esseva uniforme solmente quando le sectiones habeva essite tincturate blau. II es possibile que tal mesurationes revela le existentia de factores que debe esser quantificate ante que nos permitte le impingimento super dentes per laser a plus alte energia.