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6 ... Office bleaching 0 */ 56*0* 6+ 06# j5@ M@ B (,E) 3! M@1`2.@) >@95 Ç5!@9 +@ >) () -3!) b* (3!b -3!K!) a* Ç2@. +@ >) 6E DB Office CY@@@5) L@@@1 a* M&@@@.@@. >@2 L@5 Y5) lkf )!@@ b*!@@ aa -5/81-3/55 C0/31 l@@ Ç2@. p12 >. ) -9/62-6/58 C -2/29.)?X 15 + >) & >@@@F04 Y5) M5@. C@@ A@b 5@b5 >2 L5! 3b) M5) Y5) F) 3b) Office bleaching @ Y@5) lkf M@@) 3@@ +@@ Ü@@2 M@@1`2.?@@ (,E) 3@2 " WB@1 K9 WB1 M) i$ 6E 5@.!@ _@R M@5 >. 5 g @ L1 )T. 9/03) Offie bleaching C=$E F) 0 C(5/82 ) ) ) (3/78 ) ) M@5 ni$%.5 ) g ] K9 WB1 (,E) 3@ :@@) p@@- L@5 WB1 (14/51 16/03) (10/05 10/44) 20/77) l@kf Office bleaching F) 5@..>2 L5 F) (21/28!@ @) i@$ 6@E >) 5U) M&. 32S 5b5 b) ) Y5) >8 F) )5 ) ) Y@5) lkf Office bleaching F) C4/15 j5@ M@5.@) 5/22 >N5, >2 L5 F) 32>95 ) 5. Office bleaching@5 Y@5) j5@ ) j5@ M2. K.Ö Y5) lkf >@ (,E) L*a*b* & 32 ". C@) M@5. n2 >$E >@95 Ç5!@9 3 1! 5L* 7@" >@2 " 5, M5@. (20/28 14/87 :l@ >@) (10/05 5/76 :l@ >@)) Y5) =@ 5@,.@?@ Z E Y5) lkf Office bleaching REFERENCES 1. Aoba T, Fejerskov O. Dental fluorosis: Chemistry and biology. Crit Rev Oral Biol Med Jun; 13(2): Fejerskow O, Manji F, Baelum V. The nature and mechanisms of dental fluorosis in man. J Dent Res Feb; 69(2): Rozier RG. The prevalence and severity of enamel fluorosis in North American children. J Public Health Dent Dec; 59(4): McCloskey RJ. A technique for removal of fluorosis stains. J Am Dent Assoc Jul; 109(1):

7 210 /,, *!+ 5. Croll TP, Cavanaugh RR. Enamel color modification by controlled hydrochloric acid-pumice abrasion. I. Technique and examples. Quintessence Int Feb; 17(2): Croll TP, Cavanaugh RR. Enamel color modification by controlled hydrochloric acid-pumice abrasion. II. Further examples. Quintessence Int Mar; 17(3): Benbachir N, Ardu S, Krejci I. Indications and limits of the microabrasion technique. Quintessence Int Nov-Dec; 38(10): Train TE, McWhorter AG, Sue Seal N, Wilson CFG, Guo IY. Examination of esthetic improvement and surface alteration fallowing micro abrasion in fluorotic human incisors in vivo. Pediatr Dent Sep-Oct;18(5): Price RBT, Loney RW, Doyle MG, Moulding MB. An evaluation of a technique to remove stains from teeth using microabrasion. J Am Dent Assoc Aug; 134(8): Wong FSL, Winter GB. Effectiveness of microabrasion technique for improvement of dental aesthetics. Br Dent J Aug; 193(3): Loguercio AD, Correia LD, Zago C, Tagliari D, Neumann E, Gomes OMM, Barbieri DB, Reis A. Clinical effectiveness of two microabrasion materials for the removal of enamel fluorosis stains. Oper Dent Nov- Dec;32(6): Limeback H, Viera APGF, Lawrence H. Improving esthetically objectionable human enamel fluorosis with a simple microabrasion technique. Eur J Oral Sci Aug;114(1): Bengel, Wolfgang. Mastering digital dental photography. United Kingdom: Quintessence Publishing Co Ltd; 2006,