Er:YAG laser or high-speed bur for cavity preparation in adolescents.
Summary of "Er:YAG laser or high-speed bur for cavity preparation in adolescents."
Abstract Objectives. The aim was to evaluate the effect on cavity preparation time, the pulse changes and the patient's subjective experience during removal of healthy tooth substance with high-speed bur and Er:YAG laser. Materials and methods. Thirty-five (13 male, 22 female) 14-18-year-olds participated. After local anaesthesia, Er:YAG laser and high-speed diamond bur were used for a 2 mm deep cavity preparation on the middle of the buccal surface on contra-lateral healthy maxillary first premolars. The cavity preparation time and the pulse were measured during the treatment. Subjective experience was evaluated using a VAS-scale and a questionnaire. Wilcoxon Signed Rank test and Chi-2-test were used for statistical analyses. Results. The mean (SD) cavity preparation time was 3.7-times longer (p < 0.001) for the laser [59 (41) s] than for the high-speed bur [16 (4) s]. The mean pulse change during preparation differed (p < 0.05) between the bur (+2.2%) and laser (-4.4%). The smell was worse when laser was used (p < 0.01); 65.7% expressed less discomfort and 57.1% experienced a lower sound level when laser was used. Laser was preferred for future treatment in 62.9% of the adolescents. Conclusion. Laser ablation caused unpleasant smell and longer cavity preparation time, but was preferred by a majority of the adolescents.
Affiliation
Centre for Orthodontics and Pediatric Dentistry, Linköping & Norrköping, County Council of Östergötland , Sweden.
Journal Details
This article was published in the following journal.
Name: Acta odontologica Scandinavica
ISSN: 1502-3850
Pages:
Links
- PubMed Source: http://www.ncbi.nlm.nih.gov/pubmed/22897594
- DOI: http://dx.doi.org/10.3109/00016357.2012.700064
Medical and Biotech [MESH] Definitions
Air Abrasion, Dental
A technique using a pneumatic, high-pressure stream of aluminum oxide to remove DENTAL ENAMEL; DENTIN; and restorative materials from teeth. In contrast to using DENTAL HIGH-SPEED EQUIPMENT, this method usually requires no dental anesthesia (ANESTHESIA, DENTAL) and reduces risks of tooth chipping and microfracturing. It is used primarily for routine DENTAL CAVITY PREPARATION.
Angioplasty, Laser
A technique utilizing a laser coupled to a catheter which is used in the dilatation of occluded blood vessels. This includes laser thermal angioplasty where the laser energy heats up a metal tip, and direct laser angioplasty where the laser energy directly ablates the occlusion. One form of the latter approach uses an EXCIMER LASER which creates microscopically precise cuts without thermal injury. When laser angioplasty is performed in combination with balloon angioplasty it is called laser-assisted balloon angioplasty (ANGIOPLASTY, BALLOON, LASER-ASSISTED).
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Angioplasty, Balloon, Laser-assisted
Techniques using laser energy in combination with a balloon catheter to perform angioplasty. These procedures can take several forms including: 1, laser fiber delivering the energy while the inflated balloon centers the fiber and occludes the blood flow; 2, balloon angioplasty immediately following laser angioplasty; or 3, laser energy transmitted through angioplasty balloons that contain an internal fiber.
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