Laser use vs. handpiece for tooth preparation: A preliminary in vitro study

The key fields of research of dental lasers have focused on the use of different wavelengths on hard and soft tissues; however it is not clear whether they can be used for tooth preparation for full coverage restorations or not. The objective of this study was to investigate the possibility of tooth preparation for full coverage restorations using a scanner assembly added-on Er:YAG laser system and compare the tooth preparation durations performed with dental drills and the laser. The 20 freshly extracted human molar teeth were allocated to two groups (A and B) of 10. Group A was prepared with dental drills, whereas group B was prepared with a scanner assembly added-on Er:YAG laser system. The preparation duration means of the groups were calculated and analyzed by one-way analysis of variance. The difference between group A (20, 2±1, 9 min) and B (45, 2±|3, 1 min) (P<0.01) was significant. Laser preparation took more time than the conventional rotary instrumentation. The recommended amount of tooth reduc...

[1]  Päivi Leino-Arjas,et al.  Hand-arm vibration exposure of dentists , 2006, International archives of occupational and environmental health.

[2]  H. Luder,et al.  Pulpal response to Er:YAG laser drilling of dentine in healthy human third molars , 2003, Lasers in surgery and medicine.

[3]  E. Rytkönen,et al.  Noise level and ultrasound spectra during burring , 2002, Clinical Oral Investigations.

[4]  E Rytkönen,et al.  Vibration of dental handpieces. , 2001, AIHAJ : a journal for the science of occupational and environmental health and safety.

[5]  U. Skalerič,et al.  Morphology, chemical structure and diffusion processes of root surface after Er:YAG and Nd:YAG laser irradiation. , 2001, Journal of clinical periodontology.

[6]  R Reyto,et al.  Lasers and air abrasion. New modalities for tooth preparation. , 2001, Dental clinics of North America.

[7]  K. Takamori,et al.  A histopathological and immunohistochemical study of dental pulp and pulpal nerve fibers in rats after the cavity preparation using Er:YAG laser. , 2000, Journal of endodontics.

[8]  E. D. Rekow,et al.  Enamel Subsurface Damage Due to Tooth Preparation with Diamonds , 1997, Journal of dental research.

[9]  J. Walsh,et al.  Erbium laser ablation of dental hard tissue: Effect of water cooling , 1996, Lasers in surgery and medicine.

[10]  W. Barkmeier,et al.  Bond strengths and SEM evaluation of Clearfil Liner Bond 2. , 1995, American journal of dentistry.

[11]  G. Lundborg,et al.  Neuropathy in female dental personnel exposed to high frequency vibrations. , 1995, Occupational and environmental medicine.

[12]  Raimund Hibst,et al.  Experimental studies of the application of the Er:YAG laser on dental hard substances: I. Measurement of the ablation rate , 1989, Lasers in surgery and medicine.

[13]  R Hibst,et al.  Experimental studies of the application of the Er:YAG laser on dental hard substances: II. Light microscopic and SEM investigations , 1989, Lasers in surgery and medicine.

[14]  R. Stambaugh,et al.  Experimental periodontal treatment in humans. I. Subgingival root planning with and without chlorhexidine gluconate rinses. , 1984, The International journal of periodontics & restorative dentistry.

[15]  F. Grosso,et al.  Partial or full coverage restorations: a survey of prevailing criteria. , 1978, The Journal of prosthetic dentistry.

[16]  M. Kuwata,et al.  A dentist and a dental technologist analyze current ceramo-metal procedures. , 1977, Dental clinics of North America.

[17]  Floyd A. Peyton,et al.  Some effects of cavity instrumentation on the adaptation of gold castings and amalgam , 1958 .

[18]  L. H. Clayman.  Modern techniques for the full crown and plastic-faced gold veneer crown preparations using diamond instruments , 1952 .