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RISS 인기검색어
- 검색키워드
- 저자 : Ashita Sapra (검색결과 1 건)
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Near-infrared Laser Energy Transmission through Teeth with Crack Lines: An In-vitro Study
Ashita Sapra,Arun Darbar,Roy George 대한의학레이저학회 2021 MEDICAL LASERS Vol.10 No.4
Background and ObjectivesTo evaluate the difference in near-infrared (810 nm) laser energy transmission through teeth with and without cracks.Materials and MethodsExtracted teeth were sectioned and examined visually for the presence of cracks with the aid of photographs and a trans-illuminator. Fourteen sections, each with cracks (Group A) and no cracks (Group B) were identified and placed 15 mm from the tip of a 300 micron fiber, prior to activation with an 810 nm diode laser (0.1W, 50 ms interval,100 ms duration). A power meter positioned behind the tooth recorded the average energy that was transmitted through the samples. Unpaired t-test analysis was used to determine if the tooth sections with cracks allowed higher power passage compared to sound teeth. ResultsThe mean power recording for the cracked teeth (Group A) was significantly greater (p = 0.0005) than that for the non-cracked teeth (Group B). ConclusionWithin the limitations of this study, it is evident that significantly higher laser energy passes through teeth with cracks in comparison to teeth without cracks. A recent clinical study has also shown that lasers could be used to assess symptomatic cracked teeth. Hence, further research is required to determine the relative increase in energy required to identify symptomatic cracked teeth.
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