Effects of High-Energy Curing Lights on Time-Dependent Temperature Changes of Pulp Space During Orthodontic Bonding
Objective:The purpose of this study was to assess the temperature changes and cooling times during orthodontic bonding by a light-emitting diode (LED) and plasma arc lights (PAC) in different time and power modes with thermal imaging.Methods:A total of 100 human permanent upper first premolar teeth...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Galenos Yayinevi
2019-03-01
|
| Series: | Turkish Journal of Orthodontics |
| Subjects: | |
| Online Access: |
http://www.turkjorthod.org/archives/archive-detail/article-preview/effects-of-high-energy-curing-lights-on-time-depen/53441
|
| _version_ | 1797767499995938816 |
|---|---|
| author | Nisa Gül Amuk Gökmen Kurt Özgür Er Gülşen Çakmak Veysel Aslantaş |
| author_facet | Nisa Gül Amuk Gökmen Kurt Özgür Er Gülşen Çakmak Veysel Aslantaş |
| author_sort | Nisa Gül Amuk |
| collection | DOAJ |
| description | Objective:The purpose of this study was to assess the temperature changes and cooling times during orthodontic bonding by a light-emitting diode (LED) and plasma arc lights (PAC) in different time and power modes with thermal imaging.Methods:A total of 100 human permanent upper first premolar teeth were included in the study. Five groups were conducted, 20 teeth each, and different energy outputs of curing lights were used for adhesive polymerization with different exposure times. The temperature changes in the pulp space and cooldown times were measured by a thermal imaging system. A paired t-test, analysis of variance (ANOVA), and Student-Newman-Keuls multiple comparison tests were used for data analysis.Results:A statistically significant temperature rise was detected with all curing lights (p<0.05). The greatest temperature changes were observed in the LED standard mode with 10 seconds of exposure time (6.66±1.98°C) and LED extra power mode with 6 seconds of exposure time (6.50±1.64°C) among groups, while using PAC for 3 seconds created the smallest temperature increase (1.81±0.99°C). An application of the LED extra power mode for 6 seconds exhibited the longest cooldown time (205.91±47.48 seconds), and the shortest cooldown time was detected as 71.30±43.15 seconds with the PAC 3-second application.Conclusions:LED lights with an increased exposure time induced significant temperature rises, while no PAC light group exceeded the critical threshold value. The exposure time is more important than the energy output level of the light-curing system on temperature increments of the pulp chamber. |
| first_indexed | 2024-03-12T20:39:53Z |
| format | Article |
| id | doaj.art-fa2d787f95d04d308e81da49f97e8cc5 |
| institution | Directory Open Access Journal |
| issn | 2528-9659 2148-9505 |
| language | English |
| last_indexed | 2024-03-12T20:39:53Z |
| publishDate | 2019-03-01 |
| publisher | Galenos Yayinevi |
| record_format | Article |
| series | Turkish Journal of Orthodontics |
| spelling | doaj.art-fa2d787f95d04d308e81da49f97e8cc52023-08-01T11:03:44ZengGalenos YayineviTurkish Journal of Orthodontics2528-96592148-95052019-03-01321222710.5152/TurkJOrthod.2019.1901513049054Effects of High-Energy Curing Lights on Time-Dependent Temperature Changes of Pulp Space During Orthodontic BondingNisa Gül Amuk0Gökmen Kurt1Özgür Er2Gülşen Çakmak3Veysel Aslantaş4 Department of Orthodontics, Erciyes University School of Dentistry, Kayseri, Turkey Department of Orthodontics, Bezmialem Vakif University School of Dentistry, İstanbul, Turkey Department of Endodontics, Trakya University School of Dentistry, Edirne, Turkey Private Practice, Kayseri, Turkey Department of Computer Engineering, Erciyes University School of Engineering, Kayseri, Turkey Objective:The purpose of this study was to assess the temperature changes and cooling times during orthodontic bonding by a light-emitting diode (LED) and plasma arc lights (PAC) in different time and power modes with thermal imaging.Methods:A total of 100 human permanent upper first premolar teeth were included in the study. Five groups were conducted, 20 teeth each, and different energy outputs of curing lights were used for adhesive polymerization with different exposure times. The temperature changes in the pulp space and cooldown times were measured by a thermal imaging system. A paired t-test, analysis of variance (ANOVA), and Student-Newman-Keuls multiple comparison tests were used for data analysis.Results:A statistically significant temperature rise was detected with all curing lights (p<0.05). The greatest temperature changes were observed in the LED standard mode with 10 seconds of exposure time (6.66±1.98°C) and LED extra power mode with 6 seconds of exposure time (6.50±1.64°C) among groups, while using PAC for 3 seconds created the smallest temperature increase (1.81±0.99°C). An application of the LED extra power mode for 6 seconds exhibited the longest cooldown time (205.91±47.48 seconds), and the shortest cooldown time was detected as 71.30±43.15 seconds with the PAC 3-second application.Conclusions:LED lights with an increased exposure time induced significant temperature rises, while no PAC light group exceeded the critical threshold value. The exposure time is more important than the energy output level of the light-curing system on temperature increments of the pulp chamber. http://www.turkjorthod.org/archives/archive-detail/article-preview/effects-of-high-energy-curing-lights-on-time-depen/53441 orthodontic bondingdental curing lightsthermal imagingpulp chambertemperature change |
| spellingShingle | Nisa Gül Amuk Gökmen Kurt Özgür Er Gülşen Çakmak Veysel Aslantaş Effects of High-Energy Curing Lights on Time-Dependent Temperature Changes of Pulp Space During Orthodontic Bonding Turkish Journal of Orthodontics orthodontic bonding dental curing lights thermal imaging pulp chamber temperature change |
| title | Effects of High-Energy Curing Lights on Time-Dependent Temperature Changes of Pulp Space During Orthodontic Bonding |
| title_full | Effects of High-Energy Curing Lights on Time-Dependent Temperature Changes of Pulp Space During Orthodontic Bonding |
| title_fullStr | Effects of High-Energy Curing Lights on Time-Dependent Temperature Changes of Pulp Space During Orthodontic Bonding |
| title_full_unstemmed | Effects of High-Energy Curing Lights on Time-Dependent Temperature Changes of Pulp Space During Orthodontic Bonding |
| title_short | Effects of High-Energy Curing Lights on Time-Dependent Temperature Changes of Pulp Space During Orthodontic Bonding |
| title_sort | effects of high energy curing lights on time dependent temperature changes of pulp space during orthodontic bonding |
| topic | orthodontic bonding dental curing lights thermal imaging pulp chamber temperature change |
| url |
http://www.turkjorthod.org/archives/archive-detail/article-preview/effects-of-high-energy-curing-lights-on-time-depen/53441
|
| work_keys_str_mv | AT nisagulamuk effectsofhighenergycuringlightsontimedependenttemperaturechangesofpulpspaceduringorthodonticbonding AT gokmenkurt effectsofhighenergycuringlightsontimedependenttemperaturechangesofpulpspaceduringorthodonticbonding AT ozgurer effectsofhighenergycuringlightsontimedependenttemperaturechangesofpulpspaceduringorthodonticbonding AT gulsencakmak effectsofhighenergycuringlightsontimedependenttemperaturechangesofpulpspaceduringorthodonticbonding AT veyselaslantas effectsofhighenergycuringlightsontimedependenttemperaturechangesofpulpspaceduringorthodonticbonding |