Air Abrasion: Effect on cavity preparation and on microleakage in primary teeth


  • Lívia Azeredo Alves Antunes Fluminense Federal University
  • Vitória Esteves Salgado Fluminense Federal University
  • Leonardo Santos Antunes Fluminense Federal University
  • Lucianne Cople Maia Fluminense Federal University



Deciduous tooth, dental air abrasion, dental cavity preparation, dental leakage, scanning electron microscopy.


Objective: To compare the effects of air abrasion and high speed diamond bur on the topography of cavity preparations and the microleakage on primary teeth.
Methods: in this in vitro study, the cavities were prepared on the occlusal surfaces of 60 teeth using both techniques on each tooth. Twenty teeth were randomly chosen for a descriptive analysis of the topography. Half of the remaining teeth (20) were treated with a total-etching adhesive system and the other half treated with a self-etching adhesive system and all samples were restored with composite resin. After that the samples were prepared for microleakage tests and assessed by scores. The statistical data was evaluated and a 5% significance level was adopted for all tests.
Results: the air abrasion technique produced different topographies and increased the formation of the smear layer (stuart-maxwell chi-square, p=0.03). Microleakage was not influenced by either of the adhesive systems used for cavity preparations (wilcoxon test, p=0.08). However, high speed diamond bur showed more microleakage regardless of the adhesive used (mann-whitney test, p=0.04; p=0.01).
Conclusion: the air abrasion technique appears to be a good alternative for preventing microleakage during cavity preparation in primary teeth.


Asmussen E. Clinical relevance of physical, chemical, and bonding properties of composite resins. Oper Dent 1985;10:61-73.

Oliveira SS, Pugach MK, Hilton JF, Watanabe LG, MarshallSJ, Marshall GW Jr. The influence of the dentin smear layer on adhesion: a self-etching primer vs. a total-etch system. Dent Mater 2003;19:758-767.

Sardella TN, Castro FLA, Sanabe ME, Hebling J. Shortening of primary dentin etching time and its implication on bond strength. J Dent 2005;33:355-62.

Ogata M,Harada N, Yamaguchi S, Nakajima M, Tagami J. Effect of self-etching primer vs phosphoric acid etchant on bonding to bur-prepared dentin. Oper Dent 2002;27:447-454.

Von Fraunhofer JA, Adachi EI, Barnes DM, Romberg E. The effect of tooth preparation on microleakage behavior. Oper Dent 2000;25:526-533.

Setien VJ, Cobb DS, Denehy GE, Vargas MA. Cavity preparation devices: effect on microleakage of Class V resin-based composite restorations. Am J Dent 2001;14:157-62.

Lupi-Pegurier L, Bertrand MF, Muller-Bolla M, Rocca JP, Bolla M. Comparative study of microleakage of a pit and fissure sealants placed after preparation by Er:YAG laser in permanent molars. J Dent Child (Chic) 2003;70:134-8.

Reis L da S, Chinelatti MA, Corona AS, Palma-Dibb, Borsatto MC. Influence of air abrasion preparation on microleakage in glass ionomer cement restorations. J Mater Sci Mater Med 2004;15:1213-6.

Aysegul O, Nurhan O, Haluk B, Dilek T. Microleakage of compomer restorations in primary teeth after preparation with bur or air abrasion. Oper Dent 2005;30:164-9.

Borsatto MC, Corana AS, Chinelatti MA, Ramos RP, de Sá Rocha RA, Pecora JD, et al. Comparison of marginal microleakage of flowable composite restorations in primary molars prepared by high-speed carbide bur, Er:YAG laser, and air abrasion. J Dent Child. (Chic) 2006;73:122-6.

Hegde VS, Khatavkar RA. A new dimension to conservative dentistry: Air abrasion. J Conserv Dent. 2010;13:4-8. doi: 10.4103/0972-0707.62632.

Rome WJ, Doran JE, Walker WA. The effectiveness of Gly-Oxide and sodium hypochlorite in preventing smear layer formation. J Endod 1985;11:281-288.

Raskin A, Tassery H, D’Hoore W, Gonthier S, Vreven J, Degrange M., et al. Influence of the number of sections on reliability of in vitro microleakage evaluations. Am J Dent 2003;16:207-210.

Braga RR, Ferracane JL. Alternatives in polymerization contraction stress management. Crit Rev Oral Biol Med 2004;15:176-184.

Pedro R de L, Antunes LA, Vieira AS, Maia LC. Analysis of primary and permanent molars prepared with high speed and ultrasonic abrasion systems. J Clin Pediatr Dent. 2007;32:49-52.

Antunes LAA, Pedro RL, Vieira ASB, Maia LC. Effectiveness of high speed instrument and air abrasion on different dental substrates. Braz. Oral Res. 2008;22:235-41.

Antunes LAA, Vieira ASV, Santos MPA, Maia LC. Influence of kinetic cavity preparation devices on dental topography: an in vitro study. J Contemp Dent Pract 2008;9:146-154.

Laurell KA, Hess JA. Scanning electron micrographic effects of air-abrasion cavity preparation on human enamel and dentin. Quintessence Int 1995;26:139-44.

Hamilton JC. A clinical evaluation of air-abrasion treatment of questionable carious lesions. A 12-month report. Am Dent Assoc 2001;132:762-769.

Hicks MJ, Parkins FM, Flaitz M. Kinetic cavity preparation effects on secondary caries formation around resin restorations: a polarized light microscopic in vitro evaluation. ASDC J Dent Child 2001;68:115-21.

Atoui JA, Chinelatti MA, Palma-Dibb RG, Corona SA. Microleakage in conservative cavities varying the preparation method and surface treatment.. J Appl Oral Sci 2010;18:421-5.

Oliveira AC, Lima LM, Pizzolitto, AC, Santos-Pinto L. Evaluation of the smear layer and hybrid layer in noncarious and carious dentin prepared by air abrasion system and diamond tips. Microsc Res Tech 2010;73:597-605.

Vieira ÁS, Pedro Rde L, Antunes Ldos S, Alves Dos Santos MP, Antunes LA, Primo LG, Maia LC. Topography and presence of a smear layer in deciduous molars prepared with high-speed cutting and ultrasonic abrasion: an in-vitro study. Acta Odontol Scand. 2011;69:165-9.

Fu B, Hanning M. Effects of air abrasion and acid etching on the microleakage of preventive class I resin restorations: an in vitro study. J Esthet Dent 1994; 11:253-258.

Owens BM, Johnson WW, Harris EF. Marginal permeability of self-etch and total-etch adhesive systems. Oper Dent 2006;31:60-7.






Original Article