PMC7448214_01
Preoperative clinical, revascularization procedure and radiographic images:IOPA and CBCT images (case report 1). (a) Pre-op clinical photograph showing fractured of 11 and 12. (b) Preoperative IOPA showing the periapical lesion involving the apices of 11 and 12 and immature roots of 12. (c) Access opening done in 12. (d) Bleeding induced in 12 for revascularization. (e) Placement of CGF in the root canal space. (f) MTA plug of 3 mm placed at the level of CEJ in 12. (g) Pre-op CBCT image showing the extent of lesion in sagittal slice. (h) Post-op CBCT image showing the extent of lesion in sagittal slice. (i) Pre-op CBCT showing the root dentin thickness measurement in sagittal slice. (j) Post-op CBCT showing the root dentin thickness measurement in sagittal slice. (k) Pre-op CBCT showing the apical diameter measurement in 12. (l) Post-op CBCT showing the apical diameter in 12.
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fig1
Intraoral clinical examination revealed fracture of 11 and 12 (Figure 1(a)). Pulse  Pulp Vitality Tester, Parkell, USA) showed no response when compared with the control teeth. Periapical radiograph revealed loss of crown structure in 11, immature roots in 12, and radiolucency in the periapical area of 11 and 12 (Figure 1(b)). The lesion extent measured 4.84*5.59*9.35 mm (Figure 1(g)). Apical diameter measured 1.96 mm (Figure 1(k)). The root dentin thickness at coronal third was 1.62*1.80 mm, middle third was 1.59*1.46 mm, and apical third was 1.23*1.03 mm (Figure 1(i)). Revascularization protocol was applied for 12, and endodontic therapy was carried out in 11 with placement of intracanal medicament for three weeks (Figures 1(c)-1(f)). The lesion extent measured 4.00*4.07*8.96 mm (Figure 1(h)). The root dentin thickness at coronal third was 1.90*2.21 mm, middle third was 1.59*1.80 mm, and apical third was 1.28*1.30 mm (Figures 1(j)-1(l)).
Preoperative and postoperative volume calculations to delineate the lesion from healthy bone. Case report 1: (a, b) preoperative and postoperative volume calculations, respectively. Case report 2: (c, d) preoperative and postoperative volume calculations, respectively.
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Preoperative and postoperative volume calculations were 0.0675cm3 and 0.0541 cm3, respectively (Figures 2(c) and 2(d)).
PMC7448214_02
Preoperative and postoperative volume calculations to delineate the lesion from healthy bone. Case report 1: (a, b) preoperative and postoperative volume calculations, respectively. Case report 2: (c, d) preoperative and postoperative volume calculations, respectively.
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Preoperative and postoperative volume calculations were 0.0675cm3 and 0.0541 cm3, respectively (Figures 2(c) and 2(d)).
Preoperative clinical, revascularization procedure and radiographic images:IOPA and CBCT images (case report 2). (a) Pre-op clinical photograph showing discoloured and fractured 21 with sinus opening and pus discharge. (b) Preoperative IOPA showing periapical lesion involving the apices of 21 and open apex. (c) Access opening done in 21. (d) Bleeding induced in 21 for revascularization. (e) Placement of CGF in root canal space. (f) MTA plug of 3 mm placed at the level of CEJ in 21. (g) Pre-op CBCT image showing the extent of lesion in sagittal slice. (h) Post-op CBCT image showing the extent of lesion in sagittal slice. (i) Pre-op CBCT showing the root dentin thickness measurement in sagittal slice. (j) Post-op CBCT showing the root dentin thickness measurement in sagittal slice. (k) Pre-op CBCT showing the apical diameter measurement in 21. (l) Post-op CBCT showing the apical diameter in 21.
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Clinical examination revealed discoloured and fractured 21 with sinus opening and pus discharge (Figure 3(a)). On radiographic examination, incomplete root formation was evident in 21 with radiolucency in the periapical region (Figure 3(b)). The lesion extent in CBCT was measured to be 5.41*4.29*9.92 mm (Figure 3(g)). The root dentin thickness at coronal third was 2.70*2.20 mm, middle third was 1.77*1.83 mm, and apical third was 1.19*1.26 mm (Figure 3(i)). Apical diameter measured 2.66 mm (Figure 3(k)). Revascularization protocol was followed in 21 (Figures 3(c)-3(f)). The lesion extent in CBCT was measured to be 4.00*3.89*8.98 mm (Figure 3(h)). The root dentin thickness at coronal third was 2.90*2.23 mm, middle third was 2.26*1.84 mm, and apical third was 1.84*1.47 mm (Figure 3(j)). Apical diameter measured 1.96 mm (Figure 3(l)).