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

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

ISSN: 1472-6831