Human dental enamel evaluation after radiotherapy simulation and laminates debonding with Er,Cr:YSGG using SEM and EDS
DOI:
https://doi.org/10.5935/2525-5711.20190022Palabras clave:
Radiotherapy, Gamma Rays, Lasers, Solid-State, Dental Enamel, Head and Neck NeoplasmsResumen
The pursuit of perfection makes younger people undergo aesthetic procedures without formal indication. However, young patients may be susceptible to a disease such as head and neck cancer which treatment can compromise the adhesion of these indirect mate- rials. Here, we present an analyze, of the gamma radiation effects on crystallographic morphology of human dental enamel after laminate veneer debonding with Er,Cr:YSGG laser. Thus, human dental enamel samples were prepared and randomized into 2 groups (n=10): Laser Irradiation (L) and Gamma + Laser Irradiation (GL) group. Scanning elec- tron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDS) were performed before bonding and after debonding using Er,Cr:YSGG. Only Gamma + Laser Irradia- tion group received a cumulative dose of 70 Gy gamma radiation used in head and neck cancer radiotherapy. SEM images showed that both GL and L groups presented altered morphology. EDS showed an decrease in Ca and P intensities after laser debonding of laminates veneers in both group. Therefore, a proper laser facet removal protocol should be established for healthy patients and patients who have been exposed to radiotherapy for head and neck cancer.
Citas
Gupta N, Pal M, Rawat S, Grewal M, Garg H, Chauhan D, et al. Radiation-induced dental caries, prevention and treatment - A systematic review. Natl J Maxillofac Surg. 2015;6:160-6.
Epstein JB, Chin EA, Jacobson JJ, Rishiraj B, Le N. The relationships among fluoride, cariogenic oral flora, and salivary flow rate during radiation therapy. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 1998;86:286-92.
Vissink A, Jansma J, Spijkervet FK, Burlage FR, Coppes RP. Oral sequelae of head and neck radiotherapy. Crit Rev Oral Biol Med. 2003;14:199-212.
Ray-Chaudhuri A, Shah K, Porter RJ. The oral management of patients who have received radiotherapy to the head and neck region. Br Dent J. 2013;214:387-93.
Arif R, Dennison JB, Garcia D, Yaman P. Retrospective evaluation of the clinical performance and longevity of porcelain laminate veneers 7 to 14 years after cementation. J Prosthet Dent. 2019;122:31-7.
Anusavice KJ, Shen C, Rawls HR. Phillips materiais dentários. 12a ed. Rio de Janeiro: Elsevier; 2013. 592 p.
White JM, Goodis HE, Setcos JC, Eakle S, Hulscher BE, Rose CL. Effects of pulsed Nd:YAG laser energy on human teeth: a three-year follow-up study. J Am Dent Assoc. 1993;124:45-51.
Kielbassa AM, Hinkelbein W, Hellwig E, Meyer-Lückel H. Radiation-related damage to dentition. Lancet Oncol. 2006;7:326-35.
Sroussi HY, Epstein JB, Bensadoun RJ, Saunders DP, Lalla RV, Migliorati CA, et al. Common oral complications of head and neck cancer radiation therapy: mucositis, infections, saliva change, fibrosis, sensory dysfunctions, dental caries, periodontal disease, and osteoradionecrosis. Cancer Med. 2017;6:2918-31.
Queiroz SIML, de Medeiros AMC, da Silva JSP, da Silveira EJD. Clinical and histopathological evaluation and habits associated with the onset of oral leukoplakia and erythroplakia. J Bras Patol Med Lab. 2014;50:144-9.
Hong CHL, Napeñas JJ, Hodgson BD, Stokman MA, Mathers-Stauffer V, Elting LS, et al.; Dental Disease Section, Oral Care Study Group, Multi-national Association of Supportive Care in Cancer (MASCC)/International Society of Oral Oncology (ISOO). A systematic review of dental disease in patients undergoing cancer therapy. Support Care Cancer. 2010;18:1007-21.
de Moor RJG, Stassen IG, van ’t Veldt Y, Torbeyns D, Hommez GMG. Two-year clinical performance of glass ionomer and resin composite restorations in xerostomic head- and neck-irradiated cancer patients. Clin Oral Investig. 2011;15(1):31-8.
Reitemeier B, Reitemeier G, Schmidt A, Schaal W, Blochberger P, Lehmann D, et al. Evaluation of a device for attenuation of electron release from dental restorations in a therapeutic radiation field. J Prosthet Dent. 2002;87:323-7.
Velo MMAC, Farha ALH, da Silva Santos PS, Shiota A, Sansavino SZ, Souza AT, et al. Radiotherapy alters the composition, structural and mechanical properties of root dentin in vitro. Clin Oral Investig. 2018;22:2871-8.
Lopes CCA, Soares CJ, Lara VC, Arana-Chavez VE, Soares PB, Novais VR. Effect of fluoride application during radiotherapy on enamel demineralization. J Appl Oral Sci. 2018;27:e20180044.
Xu C, Reed R, Gorski JP, Wang Y, Walker MP. The Distribution of Carbonate in Enamel and its Correlation with Structure and Mechanical Properties. J Mater Sci. 2012;47:8035-43.
Fanovich MA, Porto López JM. Influence of temperature and additives on the microstructure and sintering behaviour of hydroxyapatites with different Ca/P ratios. J Mater Sci Mater Med. 1998;9:53-60.
Ślósarczyk A, Piekarczyk J. Ceramic materials on the basis of hydroxyapatite and tricalcium phosphate. Ceram Int. 1999;25:561-5.
Descargas
Publicado
Cómo citar
Número
Sección
Licencia
Derechos de autor 1969 Thais Freitas Rabelo, Claudia Bianchi Zamataro, Nielsen Grosko Kuchar, Nathalia Zanini, Amanda Caramel Juvino, Matheus del-Valle, Pedro Arthur Augusto Castro, Moises Oliveira Santos, Denise Maria Zezell
Esta obra está bajo una licencia internacional Creative Commons Atribución 4.0.
