Indian Journal of Public Health Research & Development

Open Access Open Access  Restricted Access Subscription Access
Open Access Open Access Open Access  Restricted Access Restricted Access Subscription Access

Evaluation of Depth of Cure in Dental Composite Resins Photo-activated Using Different Methods


Affiliations
1 Sardar Patel Institute of Dental & Medical Sciences, Lucknow, (Conservative Dentistry), India
2 Saraswati Dental College and Hospital, Lucknow, (Conservative Dentistry), India
3 BBD College of Dental Sciences, Lucknow, (Prosthodontics), India
4 Saraswati Dental College and Hospital, Lucknow, (Prosthodontics), India
5 SKSS Dental College, Sarabha, Ludhiana (Conservative Dentistry), India
     

   Subscribe/Renew Journal


Aim

The study was aimed at evaluating the depth of cure and of a composite resin that was photo-activated using different methods.

Summary

A composite curing test fixture was filled with composite resin and photo-activation was performed using three methods: (1) Intermittent method (2) Continuous method (3) Exponential method. Depth of cure was measured at the unexposed bottom surface of the specimen using vicat polymer softening apparatus. The data was analyzed using Kruskal-Wallis test. Results showed that the depth of cure was highest with the intermittent method, followed by continuous method and the exponential method.


Keywords

Composite, Depth of Cure, Photo-activation Methods
Subscription Login to verify subscription
User
Notifications
Font Size


  • Uno S, Asmussen E. Marginal adaptation of a restorative resin polymerized at reduced rate. Scand J Dent Res. 1991;99:440–4.

  • Rueggeberg FA, Caughman WF, Curtis JW, Jr, Davis HC. Factors affecting cure at depths within light-activated resin composites. Am J Dent. 1993;6:91–5.

  • Venhoven BA, de Gee AJ, Davidson CL. Polymerization contraction and conversion of light curing Bis-GMA-based methacrylate resins. Biomaterials. 1993;14:871–5.

  • Rueggeberg FA, Caughman WF, Curtis JW., Jr Effect of light intensity and exposure duration on cure of resin composite. Operative Dent. 1994;19:26–32.

  • Harrington L, Wilson HJ. Determination of radiation energy emitted by light activation units. J Oral Rehabil. 1995;22:377– 85.

  • Feilzer AJ, Doreen LH, de Gee AJ, Davidson CL. Influence of light intensity on polymerization shrinkage and integrity of restoration-cavity interface. Eur J Oral Sci. 1995;103:322–6.

  • Miyazaki M, Oshida Y, Moore BK, Onose H. Effect of light exposure on fracture toughness and flexural strength of lightcured composites. Dent Mater. 1996;12:328–32.

  • Tarle Z, Meniga A, Ristic M, Sutalo J, Pichler G, Davidson CL. The effect of the photopolymerization method on the quality of composite resin. J Oral Rehabil. 1998;25:436–42.

  • K.D Jandt, R.W Mills, G.B Blackwell, S.H Ashworth. Depth of cure and compressive strength of dental composites cured with blue light emitting diodes (LEDs). Dent Mater. 2000;16(1): 41-47

  • Sakaguchi RL, Berge HX. Reduced light energy density decreases post-gel contraction while maintaining degree of conversion in composites. J Dent. 1998;26:695–700.

  • Sobrinho LC, de Lima AA, Consani S, Sinhoreti MA, Knowles JC. Influence of curing tip distance on composite Knoop hardness values. Braz Dent J. 2000;11:11–7.


Abstract Views: 336

PDF Views: 0




  • Evaluation of Depth of Cure in Dental Composite Resins Photo-activated Using Different Methods

Abstract Views: 336  |  PDF Views: 0

Authors

Asit Vats
Sardar Patel Institute of Dental & Medical Sciences, Lucknow, (Conservative Dentistry), India
Rohit Kumar Sharma
Saraswati Dental College and Hospital, Lucknow, (Conservative Dentistry), India
N. K. Gupta
BBD College of Dental Sciences, Lucknow, (Prosthodontics), India
Madhurima Sharma
Saraswati Dental College and Hospital, Lucknow, (Prosthodontics), India
Sumit Bembi
SKSS Dental College, Sarabha, Ludhiana (Conservative Dentistry), India

Abstract


Aim

The study was aimed at evaluating the depth of cure and of a composite resin that was photo-activated using different methods.

Summary

A composite curing test fixture was filled with composite resin and photo-activation was performed using three methods: (1) Intermittent method (2) Continuous method (3) Exponential method. Depth of cure was measured at the unexposed bottom surface of the specimen using vicat polymer softening apparatus. The data was analyzed using Kruskal-Wallis test. Results showed that the depth of cure was highest with the intermittent method, followed by continuous method and the exponential method.


Keywords


Composite, Depth of Cure, Photo-activation Methods

References