Journal of dentistry · 2026
Long-term outcomes of ceramic crowns in adolescents and young adults with amelogenesis imperfecta: final follow-up of a randomized split-mouth controlled clinical trial.
СтатьяРандомизированное исследованиеНазвание и аннотация: Перевод в очереди
Обработка статьи · этапы, ошибки и управление
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Pousette Lundgren Gunilla, Vestlund Gun-Inger Morling, Dahllöf Göran
Аннотация
OBJECTIVES: Amelogenesis imperfecta (AI) causes functional, esthetic, and psychosocial problems. Although early prosthetic treatment has shown favorable medium-term outcomes, evidence on long-term performance remains limited. This study assessed the ≥10-year clinical performance of Procera zirconia and IPS e.max Press crowns placed in adolescents and young adults with AI.
METHODS: This study presents the final long-term follow-up of a previously published randomized, split-mouth, controlled clinical trial with patient blinding. In a single-center, double-blind design, 27 adolescents and young adults (aged 11-22 years) with AI received 227 ceramic crowns (119 Procera; 108 IPS e.max Press). Crowns were followed for a mean of 13.4 ± 1.0 years (range 11.0-15.3). Outcomes assessed included crown survival, restoration quality according to California Dental Association (CDA) criteria, tooth sensitivity measured on a visual analog scale (VAS), gingival health, and adverse events. Data were analyzed using Kaplan-Meier survival analysis, log-rank tests, chi-square tests, and nonparametric tests.
RESULTS: After 13.4 years, overall crown survival was 97.8%, with no significant differences by crown material (p=0.110) or AI subtype (p=0.974). Among surviving crowns, 97.0% were rated CDA excellent or acceptable, and 76.1% exhibited excellent marginal integrity. Mean VAS sensitivity decreased from 4.6 before treatment to 0.9 at long-term follow-up (p<0.001), and gingival bleeding was lower than at baseline. Endodontic complications occurred in 3.1% of teeth, primarily associated with prior dental trauma.
CONCLUSIONS: Ceramic crowns placed in adolescents and young adults with AI demonstrate excellent long- term survival, high clinical quality, and sustained symptom reduction.
CLINICAL SIGNIFICANCE: Definitive ceramic crown therapy provides durable, long-term rehabilitation in young individuals with amelogenesis imperfecta.
METHODS: This study presents the final long-term follow-up of a previously published randomized, split-mouth, controlled clinical trial with patient blinding. In a single-center, double-blind design, 27 adolescents and young adults (aged 11-22 years) with AI received 227 ceramic crowns (119 Procera; 108 IPS e.max Press). Crowns were followed for a mean of 13.4 ± 1.0 years (range 11.0-15.3). Outcomes assessed included crown survival, restoration quality according to California Dental Association (CDA) criteria, tooth sensitivity measured on a visual analog scale (VAS), gingival health, and adverse events. Data were analyzed using Kaplan-Meier survival analysis, log-rank tests, chi-square tests, and nonparametric tests.
RESULTS: After 13.4 years, overall crown survival was 97.8%, with no significant differences by crown material (p=0.110) or AI subtype (p=0.974). Among surviving crowns, 97.0% were rated CDA excellent or acceptable, and 76.1% exhibited excellent marginal integrity. Mean VAS sensitivity decreased from 4.6 before treatment to 0.9 at long-term follow-up (p<0.001), and gingival bleeding was lower than at baseline. Endodontic complications occurred in 3.1% of teeth, primarily associated with prior dental trauma.
CONCLUSIONS: Ceramic crowns placed in adolescents and young adults with AI demonstrate excellent long- term survival, high clinical quality, and sustained symptom reduction.
CLINICAL SIGNIFICANCE: Definitive ceramic crown therapy provides durable, long-term rehabilitation in young individuals with amelogenesis imperfecta.