IADR Abstract Archives
A Comparison of the Hall and Conventional Stainless Steel Crown Techniques in Primary Molars. A Retrospective Study
Objectives: The purpose of this retrospective study was to assess success rates of stainless steel crowns (SSC) placed on primary molars using the conventional technique involving caries removal and tooth preparation, and the Hall technique, a novel process with no local anesthetic, no caries removal and no tooth preparation. The results of this study will help determine success rates of both techniques over a 20-month period.
Methods: A retrospective analysis was performed using recorded data of patients with primary molars treated with SSCs placed using the Hall technique and the conventional method between 2011-2015 at the Pediatric Dental Clinics of the University of Iowa College of Dentistry. Hall crown cases were matched by tooth and age (+/- 1 year) with cases that had the crowns placed by the conventional technique. Case failure was measured clinically and defined as the need for pulp therapy or extraction following initial crown placement.
Results: Two hundred and fifty-eight Hall crowns were reviewed and clinical outcomes were analyzed, the mean age of the child at treatment was 5.7 years and 62.9% were males. Two hundred and fifty-eight children with matching teeth restored by the conventional technique had a mean age at treatment of 5.8 years and 59.6% were males. At the time of the first follow-up for Hall Crowns at 7.9 months, one crown had failed (99.6% success). Two conventional crowns failed (99.2% success) after 10.4 months. At the second follow up, 93 Hall crown subjects (36.1%) and 180 conventional subjects (69.8%) had returned for follow up treatment at 16.4 months and 20.8 months, respectively. At the second follow-up visit, one additional crown placed with the Hall technique presented with clinical failure (98.9% success), while two of the conventionally placed crowns had a similar fate (98.9% success).
Conclusions: The findings of this study provide significant information regarding the outcomes of primary molars treated with stainless steel crowns and show that the success of the Hall technique is similar to the conventional method. In addition, these results validate prospective investigation with greater specificity and extended follow-up in the future. Further analysis is ongoing and results will be reported.
Methods: A retrospective analysis was performed using recorded data of patients with primary molars treated with SSCs placed using the Hall technique and the conventional method between 2011-2015 at the Pediatric Dental Clinics of the University of Iowa College of Dentistry. Hall crown cases were matched by tooth and age (+/- 1 year) with cases that had the crowns placed by the conventional technique. Case failure was measured clinically and defined as the need for pulp therapy or extraction following initial crown placement.
Results: Two hundred and fifty-eight Hall crowns were reviewed and clinical outcomes were analyzed, the mean age of the child at treatment was 5.7 years and 62.9% were males. Two hundred and fifty-eight children with matching teeth restored by the conventional technique had a mean age at treatment of 5.8 years and 59.6% were males. At the time of the first follow-up for Hall Crowns at 7.9 months, one crown had failed (99.6% success). Two conventional crowns failed (99.2% success) after 10.4 months. At the second follow up, 93 Hall crown subjects (36.1%) and 180 conventional subjects (69.8%) had returned for follow up treatment at 16.4 months and 20.8 months, respectively. At the second follow-up visit, one additional crown placed with the Hall technique presented with clinical failure (98.9% success), while two of the conventionally placed crowns had a similar fate (98.9% success).
Conclusions: The findings of this study provide significant information regarding the outcomes of primary molars treated with stainless steel crowns and show that the success of the Hall technique is similar to the conventional method. In addition, these results validate prospective investigation with greater specificity and extended follow-up in the future. Further analysis is ongoing and results will be reported.