| 2713 Patient preference: Conventional rotary handpieces or air abrasion for cavity preparation | ||
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H.S. MALMSTRÖM1, Y. CHAVES1, and M.E. MOSS2, 1University of Rochester Eastman Dental Center, NY, USA, 2School of Medicine and Dentistry, University of Rochester, NY, USA In 1952, Goldberg reported that patients prefer the use of the air-abrasion technique over the conventional handpiece due to the reduced need for anesthesia. Technologies for both the air-abrasion and conventional rotary handpiece have seen major improvements. Objective: The purpose of this study was to determine patients' preference of either air-abrasion or the rotary handpiece for removal of occlusal fissure carious lesions in mandibular premolars. Methods: Ten subjects were recruited having fissure caries at DEJ depth of similar size (determined by radiographs and clinical examination) in any two mandibular premolars. The subjects enrolled were at least 18 years old, in good general health, and did not take any analgesic or any other medication for 24 hours prior to the cavity preparation. Each tooth was prepared using one technique of cavity preparation at one of the two restorative appointments. There was one week between restorative appointments. Anesthesia was not given at the onset of treatment, but was available upon patient request. At each visit, prior to treatment, the patients were instructed to complete the Emotional Status (ES) questionnaire to assess emotional status. The restorative procedure was timed to measure at what point the patient requested anesthesia. At both appointments, when the restorative treatment was completed, the patient was instructed to rate their pain on the Visual Analogue Scale (VAS). A technique preference questionnaire was given after the second appointment. Results: The subjects rated the perception of pain as significantly lower (p< 0.05) when using air-abrasion (6.0 versus 29.6). All 10 patients preferred air-abrasion to conventional rotary hand-pieces. No patient required anesthesia and there was no indication that the emotional status influenced the result. Conclusion: Air-abrasion was the preferred method of cavity preparation when removing fissural caries and most subjects did not experience any pain when air-abrasion was used. | ||
| Seq #251 - Properties of Impression Materials, Gypsum and Investments, Orthodontic Materials, Handpieces 3:45 PM-5:00 PM, Friday, 8 March 2002 San Diego Convention Center Exhibit Hall C | ||
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