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Table 8 Quality assessment of follow-up radiographs for patients with minimum follow-up of 23 months; range of radiographs 0–36 months.

From: The Hall Technique; a randomized controlled clinical trial of a novel method of managing carious primary molars in general dental practice: acceptability of the technique and outcomes at 23 months

    Follow-up radiographs
Category Criteria Control restoration Hall PMC
    number % number %
Exposure/developing good contrast between enamel/dentine 0 165 78 180 85
  poor contrast, but useable 1 40 19 26 12
  only useable to confirm presence or absence of teeth or PMC 2 5 2 5 2
  teeth not visible/unusable 9 1 1 0 0
Total    211   211  
Visibility of study tooth crown whole crown visible, no overlaps 0 133 63 188 89
  overlaps confined to enamel 1 58 28 7 3
  significant overlap 2 3 1 1 1
  carious lesion visible, but part of crown off-film 3 14 7 14 7
  crown not visible/unusable 9 3 1 1 1
Total    211   211  
Visibility of study tooth furcation area furcation area visible 0 174 83 133 63
  furcation area partially visible 1 12 6 14 7
  furcation not visible/not usable 9 25 12 64 30
Total    211   211