Zirconia crown performance in primary maxillary anterior teeth: a retrospective photographic and radiographic cohort study
EUROPEAN ARCHIVES OF PAEDIATRIC DENTISTRY(2020)
摘要
Purpose This retrospective cohort observational study evaluated marginal integrity, gingival health and aesthetics of zirconia crowns (ZC) placed on primary maxillary anterior teeth at 6- to over 30-month follow-up visits. Methods Two independent raters evaluated radiographic and photographic findings in 131 ZC placed in 36 children aged 24.8–62.2 months (median = 40.6) who had at least one recall visit 6 months after placement. Follow-up periods were stratified into three levels: long, intermediate and short. Associations between crown performance and crown brands, follow-up periods, treatment performed under general anaesthesia or sedation and previous pulpotomy were investigated by ordinal logistic regression . Results Follow-up ranged from 6 to 33.8 months (average: 13.5 months). Marginal integrity was highly rated in 82.4% of the teeth. No gingivitis was found in 35% of the teeth, 58% showed mild gingivitis and 7% showed moderate gingivitis ( p = 0.06). Colour match and crown contour were rated very high in 55% of the cases. Marginal integrity and periodontal health differed between cases performed under general anaesthesia and those performed under sedation ( p = 0.03 and p = 0.003, respectively). Pulpotomized teeth showed worse colour matching with the adjacent teeth than non-pulpotomized teeth ( p = 0.03). Conclusions Our findings suggest that ZC comprise a satisfactory treatment option for carious primary maxillary incisors, presenting good overall marginal integrity, gingival health, and aesthetics.
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关键词
Zirconia,Paediatric dentistry,Primary incisors,Zirconia paediatric crown
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