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Comparison between Direct and Indirect Composite Resin Restorations
 

Comparison between Direct and Indirect Composite Resin Restorations

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    Comparison between Direct and Indirect Composite Resin Restorations Comparison between Direct and Indirect Composite Resin Restorations Presentation Transcript

      • بسم الله الرحمن الرحيم
      • Comparison between direct and indirect composite restorations
      • Done by:
      • Waad Khayat.
    • Out Lines
      • Review (direct, semi direct and indirect composite resin).
      • - techniques.
      • - indications.
      • - advantages and disadvantages.
      • - failure rate.
      • Comparison between direct and indirect composite resin for the following properties:
      • - bond strength(study 1).
      • - diametral tensile strength (study 2).
      • Conclusion.
      • References.
    • What has caused the transition from metallic to tooth colored restorative materials?
      • The growing demand for esthetic restorations.
      • The great improvement of the materials and their properties.
      • The change of the treatment philosophy to more conservative approach.
    • Review ¹
      • Objective:
      • To present the current data available about many different types of direct and indirect tooth colored restorative materials including composite resin.
      1- Pascal Mange. Composite resin and bonded porcelain:the post amalgam Era. CDA Journal. 2006; 34(2):135-147.
    • 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
    • Review ¹ Failure rate : 1- Pascal Mange. Composite resin and bonded porcelain:the post amalgam Era. CDA Journal. 2006; 34(2):135-147.
    • Review ¹ 1- Pascal Mange. Composite resin and bonded porcelain:the post amalgam Era. CDA Journal. 2006; 34(2):135-147.
    • Study 1: Bond strength evaluation of direct and indirect composite restorations ² :
      • Objective:
      • To assess the bond strength of both direct and indirect composite restorations to dentine.
      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.
    • Study 1: Bond strength evaluation of direct and indirect composite restorations ² :
      • Method:
      Storing in water for 24 h measuring bond strength
    • Study 1: Bond strength evaluation of direct and indirect composite restorations ² :
      • Results :
      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.
    • 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.
    • study 2:Diametral tensile strength of composite resins submitted to different activation techniques ³ :  
      • Objective:
      • To compare the Diametral tensile strength (DTS) of four types of composite,two direct and two indirect materials, cured with different techniques.
      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.
      • Method:
      study 2:Diametral tensile strength of composite resins submitted to different activation techniques ³ :   storing in artif.saliva (1 week) measuringDTS
    • study 2:Diametral tensile strength of composite resins submitted to different activation techniques ³ :  
      • Results :
      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.
    • study 2:Diametral tensile strength of composite resins submitted to different activation techniques ³ :  
      • Conclusion:
      •  
      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.
      • Direct composite Polymerization shrinkage
      • leakage, discoloration, sensitivity failure.
      • Indirect technique -Minimize polymerization shrinkage.
      • -Insignificant difference of properties in
      • comparison to direct materials.
      • -Affected by type and thickness of the cement.
      • Direct composite that is fabricated carefully, respecting the correct indications for this technique, will provide properties higher or equal to indirect one.
      Conclusion
    • References:
      • 1- Pascal Mange. Composite resin and bonded porcelain:the post amalgam Era. CDA Journal. 2006; 34(2):135-147.
      • 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.
      • 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.
      •  
    • Thank You