PMCs as a Treatment of Children With HSPM Using the HT

Preformed Metal Crowns (PMCs) as a Treatment of Children With Hypomineralised Second Primary Molars (HSPM) Using the Hall Technique (HT)

Hypomineralised primary second molars are primary molars with a developmental disorder of the enamel. Preformed metal crowns already have good results for the treatment of caries on primary molars. In this study the aim is to investigate the clinical success and overall survival of preformed metal crowns as a treatment for hypomineralised primary molars. The crowns were placed using the Hall technique which is a simplified way of placing these crowns.

Inclusion Criteria:

• age 2-12 years
• American Society of Anesthesiologists(ASA)-score I: healthy patient
• hypomineralisation grade: 2-6
• caries with an International Caries Detection and Assessment System (ICDAS)- score: 0-3
• limited provoked pain complaint

Exclusion Criteria:

• caries with an ICDAS-score: 4-6
• pulpitis pain complaints
• infection (clinical and/or radiographic)
• >1/3 root resorption
• allergies to the used materials