Effect of tooth preparation on microleakage of stainless steel crowns placed on primary mandibular first molars with reduced mesiodistal dimension.
Incomplete adaptation of stainless steel crown margins leads to microleakage. The aim of this study was to evaluate the effect of tooth preparation on microleakage of stainless steel crowns (SSCs) placed on mesiodistally reduced primary mandibular first molars.In this In vitro study, 60 primary mand...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Tehran University of Medical Sciences
2015-02-01
|
| Series: | Frontiers in Dentistry |
| Subjects: | |
| Online Access: | https://jdt.tums.ac.ir/index.php/jdt/article/view/375 |
| _version_ | 1818048023584833536 |
|---|---|
| author | Nahid Ramazani Mina Ranjbar |
| author_facet | Nahid Ramazani Mina Ranjbar |
| author_sort | Nahid Ramazani |
| collection | DOAJ |
| description | Incomplete adaptation of stainless steel crown margins leads to microleakage. The aim of this study was to evaluate the effect of tooth preparation on microleakage of stainless steel crowns (SSCs) placed on mesiodistally reduced primary mandibular first molars.In this In vitro study, 60 primary mandibular first molars with reduced mesiodistal dimension were selected. Pulp cavities were filled with amalgam and occlusal surfaces were reduced. The samples were randomly divided into two groups (groups P and BLP). Standard preparation was done in group P with only proximal reduction. In group BLP, after reducing the proximal undercuts, buccal and lingual surfaces were slightly reduced. Occlusal one-third of the buccal surfaces was beveled in both groups. Then, the SSCs of the primary maxillary and mandibular first molars were fitted and cemented in P and BLP groups, respectively. After immersing the samples into deionized water, thermo-cycling, and immersion in 2% basic fuchsin, the samples were sectioned buccolingually. The mesial halves were evaluated microscopically for microleakage in both buccal and lingual margins. Data were analyzed using Mann-Whitney U test in SPSS 19 at the significant level of 0.05.There was a significant difference in microleakage of the buccal margin (P=0.003); whereas, the difference observed in the lingual margin was not significant (P=0.54).We suggest reduction of buccal and lingual surfaces of mesiodistally reduced primary mandibular first molars and placing lower (mandibular) crowns. |
| first_indexed | 2024-12-10T10:15:06Z |
| format | Article |
| id | doaj.art-88dcd724bd2f41848182f36b269b70bf |
| institution | Directory Open Access Journal |
| issn | 2676-296X |
| language | English |
| last_indexed | 2024-12-10T10:15:06Z |
| publishDate | 2015-02-01 |
| publisher | Tehran University of Medical Sciences |
| record_format | Article |
| series | Frontiers in Dentistry |
| spelling | doaj.art-88dcd724bd2f41848182f36b269b70bf2022-12-22T01:53:02ZengTehran University of Medical SciencesFrontiers in Dentistry2676-296X2015-02-01121351Effect of tooth preparation on microleakage of stainless steel crowns placed on primary mandibular first molars with reduced mesiodistal dimension.Nahid Ramazani0Mina Ranjbar1Assistant Professor, Children and Adolescent Health Research Center, Department of Pediatric Dentistry, Faculty of Dentistry, Zahedan University of Medical Sciences, Zahedan, Iran.Dentist, Zahedan University of Medical Sciences, Zahedan, Iran.Incomplete adaptation of stainless steel crown margins leads to microleakage. The aim of this study was to evaluate the effect of tooth preparation on microleakage of stainless steel crowns (SSCs) placed on mesiodistally reduced primary mandibular first molars.In this In vitro study, 60 primary mandibular first molars with reduced mesiodistal dimension were selected. Pulp cavities were filled with amalgam and occlusal surfaces were reduced. The samples were randomly divided into two groups (groups P and BLP). Standard preparation was done in group P with only proximal reduction. In group BLP, after reducing the proximal undercuts, buccal and lingual surfaces were slightly reduced. Occlusal one-third of the buccal surfaces was beveled in both groups. Then, the SSCs of the primary maxillary and mandibular first molars were fitted and cemented in P and BLP groups, respectively. After immersing the samples into deionized water, thermo-cycling, and immersion in 2% basic fuchsin, the samples were sectioned buccolingually. The mesial halves were evaluated microscopically for microleakage in both buccal and lingual margins. Data were analyzed using Mann-Whitney U test in SPSS 19 at the significant level of 0.05.There was a significant difference in microleakage of the buccal margin (P=0.003); whereas, the difference observed in the lingual margin was not significant (P=0.54).We suggest reduction of buccal and lingual surfaces of mesiodistally reduced primary mandibular first molars and placing lower (mandibular) crowns.https://jdt.tums.ac.ir/index.php/jdt/article/view/375CrownLeakagePrimary teethStainless steel |
| spellingShingle | Nahid Ramazani Mina Ranjbar Effect of tooth preparation on microleakage of stainless steel crowns placed on primary mandibular first molars with reduced mesiodistal dimension. Frontiers in Dentistry Crown Leakage Primary teeth Stainless steel |
| title | Effect of tooth preparation on microleakage of stainless steel crowns placed on primary mandibular first molars with reduced mesiodistal dimension. |
| title_full | Effect of tooth preparation on microleakage of stainless steel crowns placed on primary mandibular first molars with reduced mesiodistal dimension. |
| title_fullStr | Effect of tooth preparation on microleakage of stainless steel crowns placed on primary mandibular first molars with reduced mesiodistal dimension. |
| title_full_unstemmed | Effect of tooth preparation on microleakage of stainless steel crowns placed on primary mandibular first molars with reduced mesiodistal dimension. |
| title_short | Effect of tooth preparation on microleakage of stainless steel crowns placed on primary mandibular first molars with reduced mesiodistal dimension. |
| title_sort | effect of tooth preparation on microleakage of stainless steel crowns placed on primary mandibular first molars with reduced mesiodistal dimension |
| topic | Crown Leakage Primary teeth Stainless steel |
| url | https://jdt.tums.ac.ir/index.php/jdt/article/view/375 |
| work_keys_str_mv | AT nahidramazani effectoftoothpreparationonmicroleakageofstainlesssteelcrownsplacedonprimarymandibularfirstmolarswithreducedmesiodistaldimension AT minaranjbar effectoftoothpreparationonmicroleakageofstainlesssteelcrownsplacedonprimarymandibularfirstmolarswithreducedmesiodistaldimension |