Alper Sindel1, Ömür Dereci2, Mükerrem Hatipoğlu3, Öznur Özalp1, Olgu Nur Dereci4, Burak Kocabalkan1, Adnan Öztürk5. 1. Department of Oral and Maxillofacial Surgery, Akdeniz University, Faculty of Dentistry, Antalya, Turkey. 2. Department of Oral and Maxillofacial Surgery, Eskişehir Osmangazi University, Faculty of Dentistry, Eskişehir, Turkey. 3. Department of Periodontology, Akdeniz University, Faculty of Dentistry, Antalya, Turkey. 4. Department of Public Health, Gazi University, Faculty of Medicine, Ankara, Turkey. 5. Department of Oral and Maxillofacial Surgery, Ankara University, Faculty of Dentistry, Ankara, Turkey.
Abstract
PURPOSE: Erbium, chromium: yttrium, scandium, gallium, garnet (ErCr:Ysgg) lasers have been frequently used in oral surgical procedures and are almost seen as alternatives to diode lasers. The aim of this comparative study was to analyze in an animal model the thermal elevation induced by ErCr:Ysgg and diode lasers in soft tissue and bone. MATERIALS AND METHODS: Thirty freshly dissected sheep mandibles containing bone and soft tissue were divided into 120 equal parts. Gallium-aluminum-arsenide (Ga-Al-As) diode laser (λ=940 nm) with 1, 2 and 5 W output powers and ErCr:Ysgg laser (λ=2780 nm) with 2.75, 4.5 and 6 W output powers were used on soft and bone tissues separately for 3 seconds with point application. Mean temperature values before and after application of the lasers were compared in soft tissue and bone. RESULTS: The minimum mean temperature value was observed with 2.75 W ErCr:Ysgg laser while irradiation with 5 W diode laser created the maximum values (p<0.05). CONCLUSION: ErCr:Ysgg laser (λ=2780 nm) with 2.75 W power generates low levels of heat compared to diode lasers and may provide safer surgery in soft and bone tissues without destructive effects of temperature increase.
PURPOSE: Erbium, chromium: yttrium, scandium, gallium, garnet (ErCr:Ysgg) lasers have been frequently used in oral surgical procedures and are almost seen as alternatives to diode lasers. The aim of this comparative study was to analyze in an animal model the thermal elevation induced by ErCr:Ysgg and diode lasers in soft tissue and bone. MATERIALS AND METHODS: Thirty freshly dissected sheep mandibles containing bone and soft tissue were divided into 120 equal parts. Gallium-aluminum-arsenide (Ga-Al-As) diode laser (λ=940 nm) with 1, 2 and 5 W output powers and ErCr:Ysgg laser (λ=2780 nm) with 2.75, 4.5 and 6 W output powers were used on soft and bone tissues separately for 3 seconds with point application. Mean temperature values before and after application of the lasers were compared in soft tissue and bone. RESULTS: The minimum mean temperature value was observed with 2.75 W ErCr:Ysgg laser while irradiation with 5 W diode laser created the maximum values (p<0.05). CONCLUSION: ErCr:Ysgg laser (λ=2780 nm) with 2.75 W power generates low levels of heat compared to diode lasers and may provide safer surgery in soft and bone tissues without destructive effects of temperature increase.
Entities:
Keywords:
Bone; ErCr:Ysgg lasers; diode laser; soft tissue; temperature rise