Comparison between Direct and Indirect Composite Resin Restorations

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Comparison between Direct and Indirect Composite Resin Restorations

  1. 1. <ul><li>بسم الله الرحمن الرحيم </li></ul>
  2. 2. <ul><li>Comparison between direct and indirect composite restorations </li></ul><ul><li>Done by: </li></ul><ul><li>Waad Khayat. </li></ul>
  3. 3. Out Lines <ul><li>Review (direct, semi direct and indirect composite resin). </li></ul><ul><li>- techniques. </li></ul><ul><li>- indications. </li></ul><ul><li>- advantages and disadvantages. </li></ul><ul><li>- failure rate. </li></ul><ul><li>Comparison between direct and indirect composite resin for the following properties: </li></ul><ul><li>- bond strength(study 1). </li></ul><ul><li>- diametral tensile strength (study 2). </li></ul><ul><li>Conclusion. </li></ul><ul><li>References. </li></ul>
  4. 4. What has caused the transition from metallic to tooth colored restorative materials? <ul><li>The growing demand for esthetic restorations. </li></ul><ul><li>The great improvement of the materials and their properties. </li></ul><ul><li>The change of the treatment philosophy to more conservative approach. </li></ul>
  5. 5. Review ¹ <ul><li>Objective: </li></ul><ul><li>To present the current data available about many different types of direct and indirect tooth colored restorative materials including composite resin. </li></ul>1- Pascal Mange. Composite resin and bonded porcelain:the post amalgam Era. CDA Journal. 2006; 34(2):135-147.
  6. 6. Semi direct Composite Indirect Composite Direct Composite -fabricated intraorally - photo thermic curing in small furnace -cementation -restoration is fabricated on a jypsum model. -Cured in small furnace. -cementation. Intraorally, 1 visit. -incremental technique. -sandwich technique. technique limited number of teeth with favorable mouth access . serial large restorations with limited cuspal coverage. -small to medium class I and II cavities. -class III, IV and V. indication -better wear resistance. -better dimensional stability . -better marginal adaptation. - Single visit. -better esthetics. -more effective contact points. -requires less clinical time. -Satisfied properties if applied carefully. advantages -multiple extra oral steps -affected by the type of cement used. -multiple visits. -higher costs. -affected by the type of cement used. Polymerization shrinkage. Marginal leakage. Postoperative sensitivity. disadvantage
  7. 7. Review ¹ Failure rate : 1- Pascal Mange. Composite resin and bonded porcelain:the post amalgam Era. CDA Journal. 2006; 34(2):135-147.
  8. 8. Review ¹ 1- Pascal Mange. Composite resin and bonded porcelain:the post amalgam Era. CDA Journal. 2006; 34(2):135-147.
  9. 9. Study 1: Bond strength evaluation of direct and indirect composite restorations ² : <ul><li>Objective: </li></ul><ul><li>To assess the bond strength of both direct and indirect composite restorations to dentine. </li></ul>2-Lopes M B,Consani S, Sinhoreti M A, Salvio L A , Sobrinho L C. Bond strength evaluation of direct and indirect composite restorations. Arquivos em Odontologia.2006;42:257-336.
  10. 10. Study 1: Bond strength evaluation of direct and indirect composite restorations ² : <ul><li>Method: </li></ul>Storing in water for 24 h measuring bond strength
  11. 11. Study 1: Bond strength evaluation of direct and indirect composite restorations ² : <ul><li>Results : </li></ul>13.16 10.18 6.81 bond strength 2-Lopes M B,Consani S, Sinhoreti M A, Salvio L A , Sobrinho L C. Bond strength evaluation of direct and indirect composite restorations. Arquivos em Odontologia.2006;42:257-336.
  12. 12. Study 1: Bond strength evaluation of direct and indirect composite restorations ² : Conclusion: 1- different bond strength for indirect composite to tooth structure. - 2 2-Lopes M B,Consani S, Sinhoreti M A, Salvio L A , Sobrinho L C. Bond strength evaluation of direct and indirect composite restorations. Arquivos em Odontologia.2006;42:257-336.
  13. 13. study 2:Diametral tensile strength of composite resins submitted to different activation techniques ³ :   <ul><li>Objective: </li></ul><ul><li>To compare the Diametral tensile strength (DTS) of four types of composite,two direct and two indirect materials, cured with different techniques. </li></ul>3-Casselli DSM,Worschech C, Paulillo L A, Dias C T. Diametral tensile strength of composite resins submitted to different activation techniques. Braz Oral Res.2006;20(3):214-8.
  14. 14. <ul><li>Method: </li></ul>study 2:Diametral tensile strength of composite resins submitted to different activation techniques ³ :   storing in artif.saliva (1 week) measuringDTS
  15. 15. study 2:Diametral tensile strength of composite resins submitted to different activation techniques ³ :   <ul><li>Results : </li></ul>The range of DTS was 32-70MPa 3-Casselli DSM,Worschech C, Paulillo L A, Dias C T. Diametral tensile strength of composite resins submitted to different activation techniques. Braz Oral Res.2006;20(3):214-8.
  16. 16. study 2:Diametral tensile strength of composite resins submitted to different activation techniques ³ :   <ul><li>Conclusion: </li></ul><ul><li>  </li></ul>1- 2- 3-Casselli DSM,Worschech C, Paulillo L A, Dias C T. Diametral tensile strength of composite resins submitted to different activation techniques. Braz Oral Res.2006;20(3):214-8.
  17. 17. <ul><li>Direct composite Polymerization shrinkage </li></ul><ul><li>leakage, discoloration, sensitivity failure. </li></ul><ul><li>Indirect technique -Minimize polymerization shrinkage. </li></ul><ul><li>-Insignificant difference of properties in </li></ul><ul><li>comparison to direct materials. </li></ul><ul><li>-Affected by type and thickness of the cement. </li></ul><ul><li>Direct composite that is fabricated carefully, respecting the correct indications for this technique, will provide properties higher or equal to indirect one. </li></ul>Conclusion
  18. 18. References: <ul><li>1- Pascal Mange. Composite resin and bonded porcelain:the post amalgam Era. CDA Journal. 2006; 34(2):135-147. </li></ul><ul><li>2-Lopes M B,Consani S, Sinhoreti M A, Salvio L A , Sobrinho L C. Bond strength evaluation of direct and indirect composite restorations. Arquivos em Odontologia.2006;42(4):257-336. </li></ul><ul><li>3-Casselli DSM,Worschech C, Paulillo L A, Dias C T. Diametral tensile strength of composite resins submitted to different activation techniques. Braz Oral Res.2006;20(3):214-8. </li></ul><ul><li>  </li></ul>
  19. 19. Thank You

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