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Comparative evaluation of photobiomodulation therapy at 660 and 810 nm wavelengths on the soft tissue local anesthesia reversal in pediatric dentistry: an in-vivo study

  • Ankita Annu (Department of Pediatric & Preventive Dentistry, Bharati Vidyapeeth Dental College & Hospital, Bharati Vidyapeeth (Deemed to be) University) ;
  • Sujatha Paranna (Department of Pediatric & Preventive Dentistry, Bharati Vidyapeeth Dental College & Hospital, Bharati Vidyapeeth (Deemed to be) University) ;
  • Anil T. Patil (Department of Pediatric & Preventive Dentistry, Bharati Vidyapeeth Dental College & Hospital, Bharati Vidyapeeth (Deemed to be) University) ;
  • Sandhyarani B. (Department of Pediatric & Preventive Dentistry, Bharati Vidyapeeth Dental College & Hospital, Bharati Vidyapeeth (Deemed to be) University) ;
  • Adhithi Prakash (Department of Pediatric & Preventive Dentistry, Bharati Vidyapeeth Dental College & Hospital, Bharati Vidyapeeth (Deemed to be) University) ;
  • Renuka Rajesh Bhurke (Department of Pediatric & Preventive Dentistry, Bharati Vidyapeeth Dental College & Hospital, Bharati Vidyapeeth (Deemed to be) University)
  • 투고 : 2023.05.02
  • 심사 : 2023.06.13
  • 발행 : 2023.08.01

초록

Background: Local anesthesia has been reliably used to control pain during dental procedures and is important in pediatric dentistry. However, children occasionally complain of prolonged numbness after dental treatment, leading to several problems. Studies conducted to reverse the effect of local anesthesia using phentolamine mesylate and photobiomodulation therapy (PBM) are encouraging but limited. PBM is a type of light therapy that utilizes visible and near-infrared non-ionizing electromagnetic spectral light sources. Hence, this study used this modality to compare the reversal of local anesthesia at two different wavelengths. This study compared the effect of PBM at 660 and 810 nm wavelengths on the reversal of soft tissue local anesthesia using a diode LASER in pediatric dentistry. Method: Informed consent and assent were obtained, and the participants were then divided randomly into three groups of 20 children each: control group-without LASER irradiation, LASER irradiation at 660 nm, and LASER irradiation at 810 nm. Sixty children aged 4-8 years with deciduous mandibular molars indicated for pulp therapy were administered an inferior alveolar nerve block. After 45 min of injection, a duration that was similar to the approximate duration of treatment, they were exposed to 660- and 810-nm LASER irradiation according to their groups until reversal of local anesthesia was achieved. The control group did not undergo LASER irradiation. The reversal of the soft tissue local anesthetic effect was evaluated using palpation and pin prick tests every 15 min, and the LASER irradiation cycle continued until reversal of the soft tissue local anesthesia was achieved. Results: A significant reduction of 55.5 min (27.6%) in the mean soft tissue local anesthesia reversal time was observed after the application of 810 nm wavelength PBM and 69 min (34.7%) after 660 nm wavelength LASER irradiation. Conclusion: PBM with a 660 nm wavelength was more effective in reducing the mean soft tissue local anesthesia reversal duration, and thus can be used as a reversal agent for soft tissue local anesthesia in pediatric dentistry.

키워드

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