By revealing the mucogingival junction with Schiller's iodine solution and marking it separately at each tooth with a short piece of metal wire, attached to the tooth and gingiva with a strip of Squibb's Orahesive Dental Bandage, the location of the borderline between the attached gingiva and the free alveolar mucosa was made visible in the orthopantomogram. The orthopantomographic width of the attached gingiva was measured to the nearest millimeter by determination of the distance between the mucogingival and cementoenamel junctions along the long axis of each tooth. When the orthopantomograms of ten dentulous adults were measured twice with a one week interval, the reading error was ± 0,5 mm. When the mucogingival junctions of five dentulous adults were marked again after two months and the orthopantomographic width of the attached gingiva remeasured to the nearest millimeter, the difference between the results was ± 0,6 mm. The total deviation (± 0,7 mm) being less than the one millimeter unit of measurement, the method was judged reliable for orthopantomographic studies on gingival anatomy.
No takes yet. Share an insight, caveat, or question.
Talari et al. (1976) studied this question.