Effects of Bleaching Materials on the Enamel Surface Morphology

Year 2005, Volume: 32 Issue: 3 - Volume: 32 Issue: 3, 155 - 162, 01.08.2005

Arzu Müjdeci Osman Gökay

Abstract

The purpose of this in vitro study was to evaluate the effects of a tray based bleaching gel % 10CP and two strip based whitening materials %5.3,%14 HP on the enamel surface morphology.Ten intact maxillary human central teethnewly extracted for periodontal purposes fromadult between 40-50 years age were used. After theroots were removed with cutting at the cementoenamel junction, four fragments of each crownwere obtained by sectioning the tooth longitudinally in a mesiodistal and bucco-lingual direction.Three fragments of each tooth received one of thethree bleaching treatments for 21 days, the fourthfragment of each tooth any treatment were appliedand used as control. All the teeth fragments werethen prepared to be analyze in a scanning electronmicroscopy.Bleaching agents demonstrated differentmorphological observations on the enamel surface.Whitening strips with lower peroxide concentrationshowed similar enamel surface morphology tocontrol. Whitening strips with higher peroxideconcentration revealed mild surface alterations,while bleaching gel exhibited more evident alterations

Keywords

Bleaching gel, whitening strips, enamel, surface morphology

AĞARTMA MATERYALLERİNİN MİNE YÜZEY MORFOLOJİSİ ÜZERİNE ETKİLERİ

Abstract

Bu çalışmanın amacı bir ağartma jeli % 10CP ve iki ağartıcı strip’in %5.3, %14 HP mine yüzey morfolojisi üzerine etkisini değerlendirmekti. Bu amaçla 40-50 yaşlar›ndaki yetişkinlerden periodontal amaçla yeni çekilen 10 adet çürüksüz üst santral diş kullan›ld›. Dişlerin kökleri minesement s›n›r›ndan kesilip uzaklaşt›r›ld›ktan sonra, her bir diş kronu longitudinal olarak mesiodistal ve buccolingual yönde 4 eşit k›sma ayr›ld›. Her bir kronun 3 parças›na 3 ağartma tedavisinden biri 21 gün uyguland›. Dördüncü parçaya hiçbir tedavi uygulanmad› ve kontrol grubu olarak değerlendirildi. Daha sonra bütün örnekler elektron mikroskobunda SEM değerlendirilmek için haz›rland›. Ağartma materyalleri mine yüzeyinde farkl› morfolojik görüntüler sergilediler. Düşük konsantrasyonuna sahip stripler ile kontrol grubuna benzer mine yüzey morfolojisi elde edildi. Yüksek peroksit konsantrasyonlu stripler hafif değişiklikler oluştururken, ağartma jeli ile daha belirgin değişiklikler gözlendi.

Keywords

Ağartma jeli, ağartıcıstripler, mine, yüzey morfolojisi

References

• Haywood VB, Heymann HO. Nightguard vital bleaching. Quintessence Int 1989; 20:173-6.
• Sagel PA, Odioso LL, McMillan DA, Gerlach RW: Vital tooth whitening with a novel hydrogen peroxide strip system: design, kinetics and clinical response. Compend Contin Educ Dent 2000; 21 (suppl 29):10-15
• Gerlach RW, Gibb RD, Sagel PA. A ran- domized clinical trial comparing a novel 5.3%HP whitening strip to 10%,15% and 20% carbamide per- oxide tray-based bleaching systems. Compend Contin Educ Dent 2000;21(Suppl 29): 22-8.
• Fasanaro TS. Bleaching teeth: history, chemicals, and methods used for common tooth discolorations. J Esthet Dent. 1992;4:71-8
• Nathoo S, Giniger M, Proskin HM, Stewart B, Robinson R, Collins M, De Vizio W, Petrone M, Volpe AR. Comparative 3-week clinical tooth shade evaluation of a novel liquid whitening gel containing 18% carbamide peroxide and a commercially available whitening dentifrice. Compend Contin Educ Dent 2002; 23 (Suppl 1):12- 7.
• Akal N, Over H, Olmez H, Bodur H. Effects of hydrogen peroxide containing bleaching agents on the morphology and subsurface hardness of enamel. J Clin Pediatr Dent 2001;25:293-6.
• Rotstein I, Lehr Z, Gedalia I. Effects of bleaching agents on inorganic components of humsn dentin and cementum. J Endodon 1992; 18:290-3.
• Leonard RH, Sharma A, Haywood VB. Use of different concentrations of carbamide peroxide for bleaching teeth: an in vitro study. Quintessence Int 1998; 29: 503-7.
• Swift JE, Perdigao J. Effects of bleaching on teeth and restorations. Compendium 1998;19:815- 20.
• Gultz J, Kaim J, Schere W, Gupta H. Two in-office bleaching systems: a scanning electron microscope study. Compend Contin Educ Dent 1999; 20: 965-72.
• Haywood VB, Leech T, Heymann HO, Crumpler D, Bruggers K. Nightguard vital ble- aching: effects on enamel surface texture and diffu- sion. Quintessence Int 1990; 21:801-4.
• Zalkind M, Arwaz JR, Goldman A, Rotstein I. Surface morphology changes in human enamel, dentin and cementum following bleaching: a scan- ning electron microscopy study. Endod Dent Traumatol 1996;12:82-8.
• McCracken MS, Haywood VB. Demineralization effect of 10 percent carbamide peroxide. J Dent 1996;24:395-8.
• Nucci C, Marchionni S, Piana G, Mazzani A, Prarti C. Morphological evaluation of enamel surface after application of two "home" white- ning products. Oral Health Prev Dent 2004; 2: 221- 9.
• Leonard RH, Eagle JC, Garland GE, Matthews KP, Rudd AL, Phillips C. Nightguard vital beaching and its effect on enamel surface morphology. J Esthet Restor Dent 2001; 13: 132- 9.
• Haywood VB, Houck V, Heymann HO. Nightguard vital bleaching: effects of varying pH solutions of enamel surface texture and color change. Quintessence Int 1991; 22:275-82.
• Shannon H, Spencer P, Gross K, Tira D. Characterization of enamel exposed to 10% car- bamide peroxide bleaching agents. Quintessence Int 1993; 24:39-44.
• Bitter NC, Sanders JL. The effect of four bleaching agents on the enamel surface: a scanning electron microscopic study. Quintessence Int 1993; 24:817-24.
• Bitter NC. A Scanning electron microscope sudy of the long-term effect of bleaching agents on the enamel surface in vivo. Gen Dent 1998; 46: 84- 8.
• Spalding M, Taveira LA, de Assis GF. Scanning electron microscopy study of dental enamel surface exposed to 35% hydrogen peroxide: alone, with saliva, and with 10% carbamide pe- roxide. J Esthet Restor Dent 2003;15:154-65.
• Schemel W, Hummel K, Krekeler G. Haerte prufungen an schmelz dentin und zement rezenter menschlicher zahne. Schweiz Monatschr Zahnmed 1984;94:1029-41.
• Flaitz CM, Hicks MJ. Effects of hydrogen peroxide whitening agents on enamel surfaces and caries-like lesion formation: an scanning electron microscope and polarized light micro- scopic in vitro study. ASDC J Dent Child 1996; 63: 249-56.
• Kaur D, Vishwanath S, Jayalakshmi KB. Effects of various nightguard bleaching agents on surface morphology of enamel. a SEM study. Endodontology 2003;15:2-6.
• Potocnik I, Kosec L, Gaspersic D. Effect of 10% carbamide peroxide bleaching gel on enamel microhardness, microstructure and mineral content. J Endod 2000; 26:203-6.
• Josey AL, Meyers IA, Romaniuk K, Symons AL. The effects of a vital bleaching tech- nique on enamel surface morphology and the bonding of composite resin to enamel. J Oral Rehabil 1996; 23: 244-50.
• Lee CQ, Cobb CM, Zargartalebi F, Hu N. Effects of bleaching on microhardness morphology and color of enamel. Gen Dent 1995;43:158-62.
• Ben-Amar A, Liberman R, Gorfil C, Bernstein Y. Effects of mouthguard bleaching on enamel surface. Am J Dent 1995; 8:29-32.
• McGuckin RS, Babin JF, Meyer BJ. Alterations in human enamel surface morphology following vital bleaching. J Prosthet Dent 1992; 68: 754-60.
• White DJ, Kozak KM, Zoladz JR, Duschner HJ, Gotz H. Effects of tooth-whitening gels on enamel and dentin ultrastructure. a confocal laser scanning microscopy pilot study. Compend Contin Educ Dent 2000;21:(suppl):29-34.
• Teixeira ECN, Ritter AV, Thompson JY, Leonard RH, Swift EJ. Effect of tray-based and tray- less tooth whitening systems on microhardness of enamel surface and subsurface. Am J Dent 2004; 17: 433-6.
• White DJ, Kozak KM, Zoladz JR, Duschner HJ, Gotz H. Effects of crest whitestrips bleaching on subsurface microhardness and ultrastructure of tooth enamel and coronal dentin. Am J Dent 2004;17:5- 11.
• Auschill TM, Hellwig E, Schmidale S, Hannig M, Arweiler NB. Effectiveness of various whitening techniques and their effects on the enamel surface. Schweiz Monatsschr Zahnmed 2002; 112: 894-900.
• White DJ, Kozak KM, Zoladz JR, Duschner HJ, Gotz H. Peroxide interactions with hard tissues: effects on surface hardness and surface/subsurface ultrastructural properties. Compend Contin Educ Dent 2002; 23: 42-8.
• White DJ, Kozak KM, Zoladz JR, Duschner HJ, Gotz H. Effects of crest whitestrips bleaching on surface morphology and fracture susceptibility of teeth in vitro. J Clin Dent 2003;14:82-7.
• Gerlach RW, Barker ML. Professional vital bleaching using a thin and concentrated peroxide gel on whitening strips: an integrated clinical summary. J Contemp Dent Pract 2004;1:1-7.
• Basting RT, Rodriquez AL, Sera MC. The effect of 10% carbamide peroxide bleaching mate- rial on microhardness of sound and demineralized enamel and dentin in situ. Oper Dent 2001; 26: 531- 9.
• Sulieman M, Addy M, Macdonald E, Rees JS. A safety in vitro for the effects of an in-office beaching system on the integrity of enamel and den- tine. J Dent 2004;32:581-90.
• Basting RT, Rodrigues AL, Serra MC. The effects of seven carbamide peroxide bleaching agents on enamel microhardness over time. JADA 2003; 134: 1335-42.
• Yurdukoru B, Akören AC, Ünsal MK. Diş beyazlatma işleminin mine yüzey morfolojisine etkileri. AÜ Diş Hek Fak Derg 1998; 25: 291- 8.