The Application of the Ultrasonic Dental Unit to Scaling Procedures

Dental hygienists' perception of preparation and use for ultrasonic instrumentation

“…In dentistry, ultrasonic technology was first used to power a tool designed for cavity preparation . While the air‐driven handpiece became the instrument of choice for preparing teeth for restorations, in the 1950s, ultrasonic technology resulted in the development of the ‘Cavitron’, the key armamentarium for gross removal of heavy supragingival calculus in the treatment and prevention of periodontal disease .…”

Hand instrumentation versus ultrasonic debridement in the treatment of chronic periodontitis: a randomized clinical and microbiological trial

“…In the past, the removal of hard deposits was primarily performed with Conflict of interest and source of funding statement hand instruments because sonic and ultrasonic scalers were originally designed for gross scaling and removal of supragingival calculus and stains (Johnson & Wilson 1957). Numerous studies have reported beneficial results from this treatment modality in both clinical and microbiological parameters (Lindhe et al 1984, Badersten et al 1987, Ramfjord et al 1987, Renvert et al 1990, Kaldahl et al 1996, Takamatsu et al 1999.…”

Root surface roughness in response to periodontal instrumentation studied by combined use of microroughness measurements and scanning electron microscopy

“…This is probably due both to lack of A number of studies dealing with the ef-objective criteria for evaluation of the re-suits and to lack of clinical relevance of several in vitro studies. By visual inspection of tooth surfaces treated in vivo or in vitro (Johnson & Wilson 1957, Barnes & Schaffer 1960, Hansen & Kardel 1962, Ewen 1966 only gross characteristics of the effects of the various instruments can be observed. More information is obtained by studying the surface contour of ground sections of teeth by light microscopy (Allen & Rhoads 1963, Belting & Spjut 1964.…”