{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,14]],"date-time":"2026-08-14T16:43:29Z","timestamp":1786725809805,"version":"build-2736575974"},"reference-count":16,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"3","content-domain":{"domain":["lww.com","ovid.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2023,7]]},"abstract":"ABSTRACT<\/jats:title>\n \n Background:<\/jats:title>\n \n Well articulated by John Knowles \u2013 \u201d\n Everything has to evolve or else it perishes.\u201d<\/jats:italic>\n With the paradigm shift of emphasis toward the prevention of dental caries, it has been proven that laser irradiation protects against both caries initiation and caries progression.\n <\/jats:p>\n <\/jats:sec>\n \n Aim:<\/jats:title>\n The aim of the study was to evaluate and compare the micromorphology of caries-free extracted premolars using a Scanning electron microscope (SEM) after fissurotomy by conventional fissurotomy bur and erbium, chromium: yttrium, scandium, gallium, and garnet (ER, CR: YSGG) hard-tissue laser.<\/jats:p>\n <\/jats:sec>\n \n Methodology:<\/jats:title>\n \n Sixty caries-free premolars extracted atraumatically for orthodontic treatment were included in the study. The samples were divided into two groups randomly (Group 1: fissurotomy by bur,\n n<\/jats:italic>\n = 30, and Group 2: fissurotomy by hard-tissue laser,\n n<\/jats:italic>\n = 30). Each sample was further divided into halves from the occlusal surface wherein one-half of the occlusal surface received fissurotomy procedure and the other half was control. Samples were analyzed by scanning electron microscopy (SEM) for micromorphological changes.\n <\/jats:p>\n <\/jats:sec>\n \n Results:<\/jats:title>\n Profile image of control samples revealed the disorganization of enamel surface at the junction of fissures forming a heterogeneous tissue and agglomeration of enamel with deep pit and fissure. On the contrary, the image of experimented samples (with laser fissurotomy) showed smooth enamel surface and homogeneous enamel subsurface with wider pit and fissure owing to self-cleansing ability.<\/jats:p>\n <\/jats:sec>\n \n Conclusion:<\/jats:title>\n On the grounds of the present study results, it could be concluded that the intervention of ER, CR: YSGG hard-tissue laser possesses self-cleansable pit and fissures for caries prevention and has the potential to irradicate the smear layer entirely for superior attachment of remineralizing agents.<\/jats:p>\n <\/jats:sec>","DOI":"10.4103\/jisppd.jisppd_214_23","type":"journal-article","created":{"date-parts":[[2023,10,17]],"date-time":"2023-10-17T10:16:44Z","timestamp":1697537804000},"page":"253-257","update-policy":"https:\/\/doi.org\/10.1097\/lww.0000000000001000","source":"Crossref","is-referenced-by-count":0,"title":["Comparison of micromorphological changes in enamel using SEM analysis after conventional and erbium, chromium:yttrium, scandium, gallium, and garnet hard-tissue laser fissurotomy: An in vitro study"],"prefix":"10.4103","volume":"41","author":[{"given":"Priyanka","family":"Aggarwal","sequence":"first","affiliation":[{"name":"Department of Pediatric and Preventive Dentistry, ITS-CDSR, Muradnagar, Uttar Pradesh, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Pallavi","family":"Anand","sequence":"additional","affiliation":[{"name":"Department of Pediatric and Preventive Dentistry, ITS-CDSR, Muradnagar, Uttar Pradesh, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kopal","family":"Singh","sequence":"additional","affiliation":[{"name":"Department of Pediatric and Preventive Dentistry, ITS-CDSR, Muradnagar, Uttar Pradesh, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Pulkit","family":"Jhingan","sequence":"additional","affiliation":[{"name":"Department of Pediatric and Preventive Dentistry, ITS-CDSR, Muradnagar, Uttar 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