Jacek Matys1, Jakub Hadzik, Marzena Dominiak. 1. *Phd student of Wroclaw Medical University, Department of Dental Surgery, Wroclaw, Poland. †Assistant of Dental Surgery Department, Medical University of Wroclaw, Poland. ‡Head of Dental Surgery Department, Medical University of Wroclaw, Poland.
Abstract
PURPOSE: To assess the time of preparation, bone temperature increase, and the Schneiderian membrane perforation rate during maxillary sinus floor elevation. MATERIALS AND METHODS: The research included 30 maxillary sinuses (n = 30) of a pig, divided into 2 groups (n = 15). The lateral bony windows were created using Er:YAG laser (200 mJ, 15 Hz, energy density: 25.48 J/cm) and a diamond bur (control). The membrane was elevated using laser (50 mJ, 50 Hz) and hand instruments. The bone temperature was measured by K-type thermocouple. RESULTS: Significantly lower rates of the Schneiderian membrane perforation were found in the laser group (6.67%) compared with the bur (33%) (P < 0.05). The significant higher increase in temperature (mean 7.6°C) was found in the experimental group as compared with the control group (mean 2°C) (P = 0.0000033). The average time necessary for the laser bony window osteotomy was 10 minutes and 37 seconds, whereas using the bur required middling 5 minutes and 50 seconds (P = 0.000283). CONCLUSION: The application of Er:YAG laser may significantly reduce the risk of iatrogenic perforation of the Schneiderian membrane and does not cause an irreversible thermal damage in a pig model.
PURPOSE: To assess the time of preparation, bone temperature increase, and the Schneiderian membrane perforation rate during maxillary sinus floor elevation. MATERIALS AND METHODS: The research included 30 maxillary sinuses (n = 30) of a pig, divided into 2 groups (n = 15). The lateral bony windows were created using Er:YAG laser (200 mJ, 15 Hz, energy density: 25.48 J/cm) and a diamond bur (control). The membrane was elevated using laser (50 mJ, 50 Hz) and hand instruments. The bone temperature was measured by K-type thermocouple. RESULTS: Significantly lower rates of the Schneiderian membrane perforation were found in the laser group (6.67%) compared with the bur (33%) (P < 0.05). The significant higher increase in temperature (mean 7.6°C) was found in the experimental group as compared with the control group (mean 2°C) (P = 0.0000033). The average time necessary for the laser bony window osteotomy was 10 minutes and 37 seconds, whereas using the bur required middling 5 minutes and 50 seconds (P = 0.000283). CONCLUSION: The application of Er:YAG laser may significantly reduce the risk of iatrogenic perforation of the Schneiderian membrane and does not cause an irreversible thermal damage in a pig model.
Authors: Jacek Matys; Katarzyna Świder; Kinga Grzech-Leśniak; Marzena Dominiak; Umberto Romeo Journal: Biomed Res Int Date: 2019-04-22 Impact factor: 3.411
Authors: Philipp Honigmann; Maximilian Hofer; Sibylle Hirsch; Marta Morawska; Magdalena Müller-Gerbl; Florian M Thieringer; Enrico Coppo Journal: Int J Med Robot Date: 2022-07-08 Impact factor: 2.483