Abstract
Objectives The current trial aimed to compare lithium disilicate (LS2) endocrowns' clinical performance, gingival health, and parental satisfaction to those of prefabricated zirconia crowns (ZCs) over a 24-month of follow-up. Materials and Methods This study designed as a spilt-mouth randomized controlled trial. A total of 88 pulpotomized mandibular second primary molars of 44 children were assigned into two equal groups. Forty-four molars were restored with prefabricated primary ZCs (control group) and the same number were restored with LS2 endocrown (intervention group). Clinical performance and gingival status were evaluated using a modified United States Public Health Service criterion, and plaque and gingival indices. Parental satisfaction was assessed using a 5-point Likert-scale questionnaire. Statistical Analysis Paired data were analyzed using McNemar's test, a statistical test used on paired nominal data, and paired t -tests. The significance level was set to 5% at 95% confidence interval. Results Both restorations showed comparable gingival health status over the follow-ups. Marginal adaptation of the endocrowns and ZCs at the end of follow-up was 95.5 and 90.9%, respectively ( p = 0.68). For marginal integrity and discoloration, both restorations showed similar results at the follow-ups. The overall parental satisfaction of both groups was statistically insignificant ( p = 0.07). However, parents were more satisfied with the endocrown color over that of the ZC ( p < 0.05). Conclusion Endocrowns' clinical performance and gingival health were comparable to those of ZCs. For both restorations, parental satisfaction was nearly similar except for the color that showed an advantage in favor of the endocrowns.
Highlights
Restoration of pulpotomized primary molars is a commonly performed procedure in the pediatric dental office
At 6 months, all restorations in the control and intervention groups were ranked as “Alpha.” Regarding marginal adaptation, 100% of restorations showed marginal continuity of zirconia crown. aPaired sample t-test (ZC) and endocrowns at 6 months when assessed by an explorer
Our findings showed very good gingival health among the ZC group at the follow-ups and excellent parental acceptance
Summary
Restoration of pulpotomized primary molars is a commonly performed procedure in the pediatric dental office. Using a suitable final restoration is one of the determinants of success or failure of endodontically treated primary molars.[1] Restoration of pulpotomized primary molars serves to replace the lost tooth structure and enhance mechanical and functional properties that augment the long-term prognosis and survival of the tooth.[2] Stainless steel crowns (SSCs) are the commonly used full-coverage restoration of the primary molars. SSCs are characterized by their high durability, minimum technique sensitivity during placement, and their reasonable cost.[3] aesthetic restorations are often required to satisfy both patients and parents/guardians
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