Effect of Different Impression Techniques on Marginal Fit of Restoration – An In Vitro Study
Introduction: Impression making is one such important clinical step, which is critical in the accurate fitting of resulting prostheses. Impression making itself depends on the type of material and the impression technique used to record the details. Various combinations of material and the technique...
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| Format: | Article |
| Language: | English |
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Wolters Kluwer Medknow Publications
2023-07-01
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| Series: | Indian Journal of Dental Research |
| Subjects: | |
| Online Access: | https://journals.lww.com/10.4103/ijdr.ijdr_991_22 |
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| author | Priyanka S. Raghav S Abirami Abhinav Gupta Faiz Noor Khan Yusufi Shaista Afroz |
| author_facet | Priyanka S. Raghav S Abirami Abhinav Gupta Faiz Noor Khan Yusufi Shaista Afroz |
| author_sort | Priyanka S. Raghav |
| collection | DOAJ |
| description | Introduction:
Impression making is one such important clinical step, which is critical in the accurate fitting of resulting prostheses. Impression making itself depends on the type of material and the impression technique used to record the details. Various combinations of material and the technique have been described in the literature.
Aim:
To evaluate the effect of three different impression techniques on the marginal fit of computer-aided designed/computer-aided manufactured (CAD/CAM) single unit composite fixed dental prostheses (FDP), different consistencies of addition silicone impression material and different tray design were utilized.
Method:
Impression of prepared tooth on typodont was made using Matrix impression system, two-step putty wash technique, and individual tooth tray technique. Prosthesis was fabricated using CAD/CAM technology and marginal accuracy was evaluated using scanning electron microscopy (SEM).
Result:
In the present study, the matrix impression system resulted in less microgap in both mid-buccal and mid-mesial region, whereas putty wash technique showed very high standard deviation in the interproximal region.
Conclusion:
Matrix impression system had the best results at both mid-buccal and mid-mesial position with least marginal discrepancy.
Clinical Implication:
The findings of this study could be used by clinicians to help them choose the viscosity of polyvinylsiloxane material and impression techniques for FDP that will result in high-accuracy impressions and well-fitting prostheses. |
| format | Article |
| id | doaj-art-0c7b1e81c53749a985e63f816eaa396d |
| institution | Kabale University |
| issn | 0970-9290 1998-3603 |
| language | English |
| publishDate | 2023-07-01 |
| publisher | Wolters Kluwer Medknow Publications |
| record_format | Article |
| series | Indian Journal of Dental Research |
| spelling | doaj-art-0c7b1e81c53749a985e63f816eaa396d2025-02-10T07:17:03ZengWolters Kluwer Medknow PublicationsIndian Journal of Dental Research0970-92901998-36032023-07-0134329429910.4103/ijdr.ijdr_991_22Effect of Different Impression Techniques on Marginal Fit of Restoration – An In Vitro StudyPriyanka S. RaghavS AbiramiAbhinav GuptaFaiz Noor Khan YusufiShaista AfrozIntroduction: Impression making is one such important clinical step, which is critical in the accurate fitting of resulting prostheses. Impression making itself depends on the type of material and the impression technique used to record the details. Various combinations of material and the technique have been described in the literature. Aim: To evaluate the effect of three different impression techniques on the marginal fit of computer-aided designed/computer-aided manufactured (CAD/CAM) single unit composite fixed dental prostheses (FDP), different consistencies of addition silicone impression material and different tray design were utilized. Method: Impression of prepared tooth on typodont was made using Matrix impression system, two-step putty wash technique, and individual tooth tray technique. Prosthesis was fabricated using CAD/CAM technology and marginal accuracy was evaluated using scanning electron microscopy (SEM). Result: In the present study, the matrix impression system resulted in less microgap in both mid-buccal and mid-mesial region, whereas putty wash technique showed very high standard deviation in the interproximal region. Conclusion: Matrix impression system had the best results at both mid-buccal and mid-mesial position with least marginal discrepancy. Clinical Implication: The findings of this study could be used by clinicians to help them choose the viscosity of polyvinylsiloxane material and impression techniques for FDP that will result in high-accuracy impressions and well-fitting prostheses.https://journals.lww.com/10.4103/ijdr.ijdr_991_22fixed dental prosthesisimpression materialimpression techniquemarginal accuracymarginal discrepancy |
| spellingShingle | Priyanka S. Raghav S Abirami Abhinav Gupta Faiz Noor Khan Yusufi Shaista Afroz Effect of Different Impression Techniques on Marginal Fit of Restoration – An In Vitro Study Indian Journal of Dental Research fixed dental prosthesis impression material impression technique marginal accuracy marginal discrepancy |
| title | Effect of Different Impression Techniques on Marginal Fit of Restoration – An In Vitro Study |
| title_full | Effect of Different Impression Techniques on Marginal Fit of Restoration – An In Vitro Study |
| title_fullStr | Effect of Different Impression Techniques on Marginal Fit of Restoration – An In Vitro Study |
| title_full_unstemmed | Effect of Different Impression Techniques on Marginal Fit of Restoration – An In Vitro Study |
| title_short | Effect of Different Impression Techniques on Marginal Fit of Restoration – An In Vitro Study |
| title_sort | effect of different impression techniques on marginal fit of restoration an in vitro study |
| topic | fixed dental prosthesis impression material impression technique marginal accuracy marginal discrepancy |
| url | https://journals.lww.com/10.4103/ijdr.ijdr_991_22 |
| work_keys_str_mv | AT priyankasraghav effectofdifferentimpressiontechniquesonmarginalfitofrestorationaninvitrostudy AT sabirami effectofdifferentimpressiontechniquesonmarginalfitofrestorationaninvitrostudy AT abhinavgupta effectofdifferentimpressiontechniquesonmarginalfitofrestorationaninvitrostudy AT faiznoorkhanyusufi effectofdifferentimpressiontechniquesonmarginalfitofrestorationaninvitrostudy AT shaistaafroz effectofdifferentimpressiontechniquesonmarginalfitofrestorationaninvitrostudy |