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ePaper created 2015-12-29, 14:54:09 | version 1.38.0
34 3_2015 laser 34 laser_opis przypadku I research _Modern dentistry has focused on preventive methodsandconservativetechniquestoapplyless-in- vasive procedures to tooth structure.1 Awareness to- wards the importance of preserving tooth tissue com- bined with a patient-friendly approach is becoming self-evident. It has been shown that operative dental treatment often leads to an increasing scale of more surgical and invasive treatments. Whenever possible, tissue should be preserved, and invasive treatment should be kept to a minimum. The best way to ensure maximum life for the natural tooth is to respect the healthytissueandprotectitfrombeingdamagedbyus- ing minimally-invasive techniques in restorative den- tistry.2 _Preventive dentistry Preventive dentistry is a branch of dentistry that dealswiththepreservationofhealthyteethandgingiva and the prevention of dental and oral disease. The field involvesdentalprocedures,materialsandprogrammes that prevent the occurrence of oral diseases or retard their further progression. There are three levels of pre- ventions: Level1:Primaryprevention The pre-pathogenic stage employs measures that forestalltheonsetofthediseasetoreversetheprogress of the initial stage, or to arrest the disease process be- foretreatmentsbecomesnecessary. Level2:Secondaryprevention Thepathogenicstageemploystreatmentsmethods, toterminateadiseaseprocessandtorestoretissuesas nearnormalaspossible. Level3:Tertiaryprevention At this level, prevention employs measures that are necessarytoreplacemuchtissueandtorehabilitatepa- tients to the point that functionality resembles its nat- ural condition, as much as possible, after the failure of thesecondarypreventions. 06 I laser2_2015 Fig. 1b Figs. 1a & b_Acid etching of hypoplastic enamel showed patchy loss of surface tooth structure without evidence of uniform etching patterns (a). The laser treated surfaces showed that Er:YAG radiation caused an uniform roughness of the enamel for HE (b) teeth (magnification x 3,000). Preventive approach in paediatric dentistry using Er:YAG laser Author_Ani Belcheva, Maria Shindova & Georgi Tomov, Bulgaria Fig. 1a