Journal Article

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European journal of dentistry

Eur.J.Dent.

Jul

8

3

402

406

LR: 20140911; JID: 101303672; OID: NLM: PMC4144141; OTO: NOTNLM; ppublish

India

1305-7456

PMID: 25202223

eng

Journal Article

10.4103/1305-7456.137656 [doi]

Unknown(0)

25202223

OBJECTIVE: THE AIM WAS TO EVALUATE THE EFFECT OF ER, CR: YSGG laser and casein phosphopeptide-amorphous calcium phosphate (CPP-ACP) on surface micro-hardness of primary tooth enamel. MATERIALS AND METHODS: A total of 30 freshly extracted caries free primary anterior teeth were cleaned and stored in 1% thymol. Teeth were embedded in acrylic resin such that only their buccal surfaces were exposed and were divided into four groups. Group I: Five intact teeth (negative control). The remaining 25 teeth were immersed for 30 min in 1% citric acid for demineralization. Group II: Five demineralized teeth (positive control), Group III: CPP-ACP (GC tooth mousse-GC International, Itabashi-Ku, Tokyo, Japan) application and Group IV: Etching using Er, Cr: YSGG laser + CPP-ACP application. Groups III and IV were subjected to pH cycling for 5 days. Surface micro-hardness of all the teeth was measured using Brinell hardness tester (Fuel Instruments and Engineers Pvt. Ltd.). Data were analyzed using ANOVA. RESULTS: Mean surface micro-hardness of Groups I and II were 177.43 kgf/mm(2) and 164.86 kgf/mm(2), respectively. Group IV showed a higher mean surface micro-hardness (230.68 kgf/mm(2)) compared with that of Group III (190.28 kgf/mm(2)). In comparison to all other groups, laser etching prior to CPP-ACP application increased surface micro-hardness significantly (P 0.001). CONCLUSION: Laser irradiation of primary teeth followed by CPP-ACP application increased surface micro-hardness of enamel.

Subramaniam,P., Pandey,A.

Department of Pedodontics and Preventive Dentistry, The Oxford Dental College, Hospital and Research Center, Bengaluru, Karnataka, India.; Department of Pedodontics and Preventive Dentistry, The Oxford Dental College, Hospital and Research Center, Bengalu

PMC4144141

http://vp9py7xf3h.search.serialssolutions.com/?charset=utf-8&pmid=25202223

2014