Distribution and severity of molar hypomineralisation: trial of a new severity index. Issue 2 (22nd May 2013)

• Record Type: Journal Article
• Authors: Oliver, Kelly; Messer, Louise B.; Manton, David J.; Kan, Karen; Ng, Fiona; Olsen, Christopher; Sheahan, John; Silva, Margarita; Chawla, Narisha
• Is Part Of: International journal of paediatric dentistry. Volume 24:Issue 2(2014:Mar.)
• Page Start: 131
• Page End: 151
• Publication Date: 2013-05-22
• Subjects: Pedodontics -- Periodicals; 617.645
• DOI: 10.1111/ipd.12040
• Languages: English
• ISSNs: 0960-7439

Abstract

<abstract abstract-type="main" id="ipd12040-abs-0001"> <title> <x xml:space="preserve">Abstract</x> </title> <sec id="ipd12040-sec-0001" sec-type="section"> <title>Background</title> <p>Current molar hypomineralisation (MH) indices do not guide clinicians in management of affected dentitions, and treatment is based on individual judgment.</p> </sec> <sec id="ipd12040-sec-0002" sec-type="section"> <title>Aim</title> <p>The aims of this study were to describe characteristics of MH and molar incisor hypomineralisation (MIH) and trial the new Molar Hypomineralisation Severity Index (MHSI).</p> </sec> <sec id="ipd12040-sec-0003" sec-type="section"> <title>Design</title> <p>First permanent molars (FPMs) and permanent incisors (PIs) in 283 affected children were examined for hypomineralisation characteristics [defect colour, location, post‐eruptive breakdown (PEB); restorations placed/replaced/atypical; sensitivity]. The MHSI scores were compared with treatment received (152 children).</p> </sec> <sec id="ipd12040-sec-0004" sec-type="section"> <title>Results</title> <p>Mean (SD) affected teeth/dentition were as follows: FPMs: 3.2 (1.0) and PIs: 1.6 (1.6). Affected FPMs showed no arch or quadrant predilection; maxillary central PIs were affected particularly. As affected FPMs/dentition increased, MIH diagnoses also increased (<italic>P</italic> = 0.009). Among FPMs, defects most prevalent were brown (47%) and cuspal (74%); 67% showed PEB. Before study entry, 43% of FPMs had restorations placed/replaced. Among PIs, white defects were common (65%) on smooth surfaces; sensitivity was rare. Affected FPMs received more restorations and extractions than unaffected FPMs (<italic>P</italic> = 0.0001). As MHSI scores increased, FPM treatments/dentition increased (number, invasiveness). All characteristics were significant in predicting treatment (logistic regression model).</p> </sec> <sec id="ipd12040-sec-0005" sec-type="section"> <title>Conclusions</title> <p>A spectrum from MH to MIH occurred. The MHSI characteristics were predictive of the treatment of affected FPMs and can guide management.</p> </sec> </abstract>