This review to determine the prevalence of middle mesial canal (MMC) in mandibular molars using cone beam computed tomography included 34 studies. THTe findings suggest a MMC prevalence of 4.4% (95%Cl: 3.5% to 5.3%) in first permanent molars and 1.3% (95%Cl: 0.08% to 1.8%) in second permanent molars.
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This review of the clinical success rates of endodontic therapies used on compromised first permanent molar teeth in a child aged 16 and under included 11 studies. While good success rates are suggested for pulpotomy the limited evidence means definative conclusions cannot be drawn.
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No new trials were available for this Cochrane review update. Only 8 RCTs were available providing inconsistent, low-quality evidence for a difference in postoperative hypersensitivity after placing a liner for posterior resin-based composite restorations in adult permanent teeth.
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This well conducted multi-centered randomised controlled trial compares fluoride-containing resin-based sealants with non-fluoride sealants
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This review of the the effects and sequela of early extraction of first permanent molars included 11 observational studies providing limited quality evidence of the consequences of early extraction. High quality prospective studies are needed.
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16 studies affect of were included in this review of tooth characteristics on sealant performance. With the exception of lower sealant failure rate on premolars sealants were not affected negatively by mouth side, jaw, or tooth type.
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This Cochrane review includes 37 RCTs and found regular supervised use of fluoride mouthrinse by children and adolescents is associated with a large reduction in caries increment in permanent teeth.
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17 low quality studies were included in this review of the association between molar incisor hypomineralisation and caries. A significant association was suggested but none of the studies was considered to be of high quality so the findings should be interpreted with caution.
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This review of coronal pulpotomy in permanent teeth demonstrated good survival at 2 years 92% (95%CI; 84 -100). However as the majority of studies were observational they should be viewed cautiously until further high quality RCTs are available.
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This trial involved 112 children and found improved sealant retention on permanent teeth following the use of an intermediate bonding agent.
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