Results
All periapical regions had radiological findings. We identified several areas in the upper jaw and the mandible with a nuclide enrichment in the scintigraphy; therefore, we decided to separate four groups of99Tcm uptake intensity: No 99Tcm uptake (BSgrade: 0); 1: mild 99Tcm uptake (BSgrade: 1); 2: moderate 99Tcm uptake (BSgrade: 2); 3: solid99Tcm uptake (BSgrade: 3). The categories were summarized and compared to the CB-CT-findings. Based on the categories of maturation [8] and 99Tcm uptake, we found the following densities in CB-CT:
In Region 15, 11, 21, 23, 34 and 32: CB-CT°1 (Grade 1): intraosseous ballooning, thinning of the cortical bone; beginning accumulation on99Tcm scintigraphy (BSgrade: 1). In Region 12, 22, 38, 35, 33 and 31-45: CB-CT°2 (Grade 2): apico-central sclerosis, sclerotic margin (edging) to cancellous bone increasing accumulation on99Tcm scintigraphy (BSgrade: 2). In Region 14, 13, 26, 27, and 46-47: CB-CT°3 (Grade 3): sclerotic remodellation of the bone marrow; intense accumulation on 99Tcm-scintigraphy (BSgrade: 3), and in region 36, 37: CB-CT°4 (Grade 4): periapical drumstickformation, hypercementosis; decreasing accumulation on99Tcm -scintigraphy (BSgrade: 1-2).
In regions 24 and 25, we did not find 99Tcm -scintigraphy nor sclerotic chances, nor did we in the highly atrophic maxilla region 17, 16. No calcification of the pulp, no pulp stones were detected.