The inhibitory effect of CW CO, laser irradiation on caries like lesion initiation in sound root: an in vitro study
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https://doi.org/10.32828/mdj.v1i1.1103Keywords:
CW Co2 laser, laser irradiation, caries like lesion, caries inhibitionAbstract
This study aimed to assess the caries-preventive potential of various CW CO. laser parameters, and ot explore hte effect of the laser power density and the exposure time oneht caries inhibition activity. Roots foextracted human premolar teetn were irradiated with three various power densities (31.83, 63.59, and 127.32) W/cm'. The CO, laser system emitted laser with 10.64m in wavelength. Al roots were subjected to caries kiel lesion formation by 35. pH lactic acid for 12 days. The roots after that were sectioned into ground cross sections and the lesion depths were measured using a graticule under a polarizing microscope. WC CO, laser preventive treatments inhibited caries like lesion progression up ot %97. This efect was improved with increased power density within tbe limits of the examined laser parameters. Conclusion; -1 CW COy alser resulted ni a significant inhibition of the root carieslike lesion. The inhibitory effect depends upon power density of the laser beam. The optimal chopped COz laser parameters used for caries inhibition purpose aer achieved with 127.32 W/em' power density.
References
-1 Stern RH, Sognnaes RF, Goodman .F Laser effect no ni vitro enemel permeability and solubility, JADA 1966, :37838-843. -2 Yamamoto H, Coya K. Potential of YAG laser ni caries prevention. JOral Pathol 1974; 3(1): 7-15. 3-Yamamoto H, Sato K: Prevention of dental caries yb acousto-opticaly Q-switched Nd: YAG laser irradiation. J Dent Res. 1980; 59(2): 2 17 1- 2 1 77. The inhibitory effect of CW CO. Laser. Mustansiria DJ The inhibitory effect of CW CO, Laser.... Vo l : | No.: I 2004 -4 Featterstone JDB, Nelson DGA: Laser effects on dental hard tisue. Adv Dent Res. 1987; 1(1):21-26 5- Nelson DGA, Shariati M. Glean R, Shield GP Fatherstone JDB: Effect of pulsed low energy infrared laser irradiation on artificial caries like lesion formation. Caries Research 1986; 20:289-299, 6- Nelson DGA, Jongebloed WL, Fatherstone JDB: Laser irradiation of human dental enamel and denting. New Zealand Dental Journal 1986, 82: 74-77. -7 Myers TD, Myers WD: The use of a laser fur debridement of incipient caries. Joural of Prosthetic Dentistry 1985; 53:776-779, -8 Steward .L Powell GL, Wright S: Hydroxyapatite attached by laser a potential sealant for pits and fissures. Operative Dentistry 1985; 10:2-5. 9. Fried D, Seka W. Glena RE, Featherstone JDIB: Thermal response of hard dental tissues ot 9through 1 um CO, laser irradiation. Opt Eng 1996: 3507):1976- 1984. 10-Fried D, Glena RE, Featherstone JDB, Seka W: Multiple - Pulse irradiation of dental hard tissue at CO, laser wavclength. In: Wigdor HA, Featherstone JDB, White JM, eds. Laser ni dentistry [proceeding. Bellingham, Wash: SPlE-The international Society of Optical Engineering 1995; 60:41-50. El-Kantorowitz ZVI, Featherstone JDB, Fried D: Caries prevention yb CO, laser treatment dependency no the number of pulses used. JADA 1998; 129: 585-591. 12-Fox LJ. Yu D, Otsuka M. Higuchi WI Wang 1, Powell GL: Combined effects of laser irradiation and chemical inhibitors on the dissolution of dental enamel. Caries Re 26:333-339 s 192; 14-Westerman GH, Hicks MI, Flaitz CM. Blankenas RI, Powel GL. Berg IH: Effect of argon laser irradintion on caries like lesion initiation and progression ni enamel. J Dent Res 1993, 72: 347 #( 1948) 15-Hicks MJ, Flaitz CM, Westerman GH, Berg JH. Blankenau RJ, Powell GL: Caries like le si on initiation and progression ni sound enamel following argon laser irradiation: an ni vitro study. I Deat Child 193; 60: 201-206. 16- Tagomori 5, Morioka T: Combined effects of laser and fluoride on acid resistance of human dental enamel. Caries Res 1989; 23: 225-231. 17-Sato K: Relation between acid dissolution and histological alteration of heated tooth enamel. Caries Res 1983; 17: 490-495. I&-Neison DGA, Wefel IS, Jongebloed WL, et n:i Morphology, histology and crystallography of human dental enamel treated with pulsed low energy infrared laser irradiation. Caries Res 1987; 21: 411-426. 19-Dho T, Morioka T: A possible mechanism of acquired resistance of human dental enamel by laser irradiation. Caries Kes 1990: 24:86-92. 20-Love RM: The effects of laser irradiation of the dental tissues a review. NewZealand Dental Joural 1995; 91:134-137. 21-Meurum JH. Voegen JC, Rauhamman- Makinen R, et :la Efects of CO. Nd. YAG and CO-Nd YAG combination lascr at high energy densitics on synthetic hydroxyapatite. Caries Research 1992; 26: 77-83. 22- Blankenau RJ, Kelsey WP, Powel GL et al: Degree of composite resin polymerization with visible light and argon laser. Am J Dent 1991; 4:40-44. 13-Myers ML: The effect of laser irmdiation on oral tissue .J Prosth Dent 1991; 66:395-397, 2 4 - L a u n a y Y. M o r d o n . S C o m i l A e l a : Thermal effects of laser on dental tissue Laser. SurgMod 1987, 7:473-477. 25- Silver stone LM, Hicks MJ. Featherstone MJ: Dynamic factors affecting lesion initiation 5 Blankenna RJ: Argon effect on demineralization fo human ena 1643: 347-349, mel. SPIE 1992; Mustansiria DI The inhibitory effect of CW CO, Laser. Vol:1 No.:1 2004 and progression ni human dental caries .I Surface morphology fo sound enamel and caries like lesion fo enamel. Quintessence Int 1988; 19: 773-785. 26-Hicks MJ, Flaitz CM. Westerman GH. Blankenau RJ, Powel GL, Berg JH: Caries - like lesion initiation and progression around l a s e r - c u r e d s e a l a n t s . A m e r i c a n J o u r n a l of Dentistry1993,6(4): 176-180. -72 Westerman GH. Hicks MJ. Flaitz CM, Powel GL, Blankenau :RJ Surface morphology fo sound enamel after argon laser irradiation an ni vitro scanning electron microscopie study. Joumal of Clinical Pediatric Dentistry 1996, 12 (D: 55-59. 23-Flicks MJ, Flaitz CM, Westerman GH, Blankenau RJ, Powel GL, Berg JH: Enamel caries initiation and progression following low flowence (energy) argon laser and fluoride Ereatment. Joural of Clinical Pediatric Dentistry 1995: 20(1): 9-13 29-Hicks Mi, Flaitz CM. Westerman GH. Blankenau RJ, Powell GL: Root caries ni vitro after low flowence argon laser and fluoride treatment. Compendium 199-18(8): 543-352. 30- Westerman GH, Hicks MI, Flaitz CM, Blankenau RJ, Powel GL. Berg HJ. Argon laser irradiation ni toot surface caries in vitro study examines laser efects. JADA 1994; 125.401-407. 31- Flaitz CM, Hicks MJ, Westernan GH, Berg JH, Blankenau RJ, Powel GL: Argon laser irradiation and acidulated phosphate fluoride treatment ni caries like lesion formation ni enamel an in vito study. Pediatric Dentistry 1995; 17(1): 31-35 32-Hicks MJ, Westerman GH, Flaitz CM, Blankenau RJ, Powell GL, Berg JH: Effects of Argon Laser irradiation and acidulated phosphate fluoride on root caries. American Journal of Dentistry 1995; 8(1): 10-14. 33-Ogaard R: Effects of fluoride on caries development and progression ni vitro. J Dent Res 1990; 69 (Spec Iss): 813-823. 34-Tencate JM: In vitro studies on the effects of flooride on do-and remineralization. J Dent Res 1990; 69 (Spes Iss): 614-619. 35-Rolla G. On the role of calcium ni the cariostatic mechanism o f fluoride. Acta Odontol Scand 1988; 46: 341-345. 36-Rola G: Topical application of fluoride on t e e t h n e w c o n c e p t s o f m e c h a n i s m interaction. I Clin Periodontol 1993; 20: 105- 108. 37-Catone GA, Alling IlICC: Laser application ni orl and maxilofacial surgery ni wavelength conversion effect -contact and free- beam laser surgery. 1"edition Pennsylvania USA WB Saanders Company 1997; Pp. 65-70. 38- Wigdor HA, Walsh JT. Featherstone JDB, Visuri SR. Fries D, Waldvogel JL: Laser ni dentistry, Laser Surg Med 1995; 16 (2): 103- 56 39-Yu D, Powel GL, Higachi WT, Fox JL: chamber impetite ange donal chamber temperature change. Clinical laser Medicine and Surgery 1993: 11 (3): 119-122. 40-Zack L, Cohen G: Puip response extemaily applied heat. Oral Surg Oral Med Oral Pothol. 1965; 9:515-530. 41-Yu D, Powel GL, Fox JL, Mcclane RW. Higuchi WT: Puipal temperature measurement for Nd YAG laser irradiation human tooth 3* International Congres on Lasers ni Dentistry 1992; Sail Lake City August 7 Abstract 74. 42-Rizoia 1, Levy GC: Efliciency of cooling mechanism during the exposure of enamel ot a pulsed Nd YAG laser beam An ni vitro study. SPIE Los Angeles Jan. 8 Abstract 1880 C-33,
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