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Laser Aided Ceramic Restoration Removal: A Comprehensive Review

Rezvaneh Ghazanfari, Nahal Azimi, Hanieh Nokhbatolfoghahaie, Marzieh Alikhasi
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Abstract

Introduction: All-ceramic restorations are being widely used due to its various advantages. However, they have restricted durability and may have to be removed. The conventional procedure for removal is grinding the restoration with rotary instruments which are considered time-consuming and inconvenient. A newer advantageous method is the application of lasers for debonding ceramics from the tooth surface. The objective of this study is to provide a comprehensive literature review on laser-aided ceramic restorations debonding.
Methods: We searched PubMed and Google Scholar databases. Seven articles from 2011 to 2018 were identified. Studies were assessed for the efficacy of laser application and the amount of pulpal temperature rise.
Results: Studies selected were categorized according to variables including shear bond strength, debonding time and intrapulpal temperature. Oztoprak and Iseri investigated that erbium-doped yttrium, aluminum, and garnet (Er:YAG) laser application reduced shear bond strength of ceramic laminate veneers. The time of debonding took an average of 190 seconds in Rechmann’s study and 106 seconds in Morford’s study. One of the main issues while using the laser is thermal irritation of the pulp. A 5.5°C temperature increase may cause pulpal damage according to Zach and Cohen. Philips et al and Rechmann et al reported no intrapulpal harm due to temperature increase. Additionally, Phillips et al demonstrated that the laser setting affects both the debonding time and the temperature alterations and that a laser adjustment of 2.5 W/25 Hz would be the best safest group.
Conclusion: Removal of ceramic crowns and veneers from tooth surfaces can be successfully done by Er:YAG laser application in a less time-consuming procedure and without any harm to the underlying dentin. However, a temperature rise in the pulp may occur which could be overcome by adequate air water cooling.

Keywords

Ceramic restorations; Er:YAG laser; Restoration removal; Debonding.

References

Maheshwari P, Wagaskar V, Maheshwari R. Comparison of the efficiency and complications of lumenis and wolf morcellators after holmium laser enucleation of the prostate. Indian J Dent Res. 2011;22(1):140-3. doi: 10.4103/ iju.IJU_133_17

Azzaldeen A, Muhamad A-H. Restoration of esthetics using ceramics laminate veneer; clinical review: a case report. J Adv Med Dent Sci Res. 2015;3(1):1801-185.

Magne P, Hanna J, Magne M. The case for moderate” guided prep” indirect porcelain veneers in the anterior dentition. The pendulum of porcelain veneer preparations: from almost no-prep to over-prep to no-prep. Eur J Esthet Dent. 2013;8(3):376-388.

Kursoglu P, Gursoy H. Removal of fractured laminate veneers with Er: YAG laser: report of two cases. Photomed Laser Surg. 2013;31(1):41-3. doi:10.1089/pho.2012.3410

Nalbantgil D, Oztoprak MO, Tozlu M, Arun T. Effects of different application durations of Er: YAG laser on intrapulpal temperature change during debonding. Lasers Med Sci. 2011;26(6):735-740. doi:10.1007/s10103-010- 0796-7

Morford CK, Buu NC, Rechmann BM, Finzen FC, Sharma AB, Rechmann P. Er: YAG laser debonding of porcelain veneers. Lasers Surg Med. 2011;43(10):965-974. doi:10.1002/lsm.21144

Rechmann P, Buu N, Rechmann B, Finzen F. Laser all-ceramic crown removal and pulpal temperature—a laboratory proof-of-principle study. Lasers Med Sci. 2015;30(8):2087-2093. doi:10.1007/s10103-015-1738-1

Rechmann P, Buu NC, Rechmann BM, Finzen FC. Laser all‐ceramic crown removal—a laboratory proof‐of‐principle study—Phase 2 crown debonding time. Lasers Surg Med. 2014;46(8):636-643. doi:10.1002/lsm.22280

Rechmann P, Buu NC, Rechmann BM, Le CQ, Finzen FC, Featherstone JD. Laser all‐ceramic crown removal—A laboratory proof‐of‐principle study—Phase 1 material characteristics. Lasers Surg Med. 2014;46(8):628-635. doi:10.1002/lsm.22279

Gurney ML, Sharples SD, Phillips WB, Lee DJ. Using an Er, Cr: YSGG laser to remove lithium disilicate restorations: A pilot study. J Prosthet Dent. 2016;115(1):90-4. doi:10.1016/j. prosdent.2015.08.003

Ghazanfari R, Nokhbatolfoghahaei H, Alikhasi M. Laser-aided ceramic bracket debonding: a comprehensive review. J Lasers Med Sci. 2016;7(1):2. doi:10.15171/jlms.2016.02

Ekworapoj P, Sidhu SK, McCabe JF. Effect of different power parameters of Er, Cr: YSGG laser on human dentine. Lasers Med Sci. 2007;22(3):175-182. doi:10.1007/s10103- 006-0426-6

Corona SAM, Souza AE, Chinelatti MA, Borsatto MC, Pécora JD, Palma-Dibb RG. Effect of energy and pulse repetition rate of Er: YAG laser on dentin ablation ability and morphological analysis of the laser-irradiated substrate. Photomed Laser Ther. 2007;25(1):26-33. doi:10.1089/pho.2006.1075

Corona SAM, Souza‐Gabriel AE, Chinelatti MA, Pécora JD, Borsatto MC, Palma‐Dibb RG. Influence of energy and pulse repetition rate of Er: YAG laser on enamel ablation ability and morphological analysis of the laser‐irradiated surface. J Biomed Mater Res A. 2008;84(3):569-575. doi:10.1002/jbm.a.31335

Raucci-Neto W, Chinelatti MA, Palma-Dibb RG. Ablation rate and morphology of superficial and deep dentin irradiated with different Er: YAG laser energy levels. Photomed Laser Surg. 2008;26(6):523-529. doi:10.1089/ pho.2007.2201

Iseri U, Oztoprak MO, Ozkurt Z, Kazazoglu E, Arun T. Effect of Er: YAG laser on debonding strength of laminate veneers. Eur J Dent. 2014;8(1):58. doi:10.4103/1305- 7456.126243

Oztoprak MO, Tozlu M, Iseri U, Ulkur F, Arun T. Effects of different application durations of scanning laser method on debonding strength of laminate veneers. Lasers Med Sci. 2012;27(4):713-6. doi:10.1007/s10103-011-0959-1

Phillips WB. Thermal changes in the dental pulp during Er, Cr: YSGG Laser Removal of IPS e.max Press Lithium Disilicate Veneers [dissertation]. Columbus, Ohio: The Ohio State University; 2012. doi:10.1016/j.prosdent.2015.08.003

Zach L, Cohen G. Pulp response to externally applied heat. Oral Surg Oral Med Oral Pathol. 1965;19(4):515-530.

Han X, Liu X, Bai D, Meng Y, Huang L. Nd: YAG laser-aided ceramic brackets debonding: effects on shear bond strength and enamel surface. Appl Surf Sci. 2008;255(2):613-615. doi:10.1016/j.apsusc.2008.06.082

Tocchio RM, Williams PT, Mayer FJ, Standing KG. Laser debonding of ceramic orthodontic brackets. Am J Orthod Dentofacial Orthop. 1993;103(2):155-162. doi:10.1016/ S0889-5406(05)81765-2

Sari T, Tuncel I, Usumez A, Gutknecht N. Transmission of Er: YAG laser through different dental ceramics. Photomed Laser Surg. 2014;32(1):37-41. doi:10.1089/pho.2013.361116

Lloyd C, Joshi A, McGlynn E. Temperature rises produced by light sources and composites during curing. Dent Mater. 1986;2(4):170-4.

Baldissara P, Catapano S, Scotti R. Clinical and histological evaluation of thermal injury thresholds in human teeth: a preliminary study. J Oral Rehabil. 1997;24(11):791-801.




DOI: https://doi.org/10.22037/jlms.v10i2.22260