PMC9675627_01
Intra-oral examination shows a sinus tract associated with tooth #9.
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F1
Intra-oral examination revealed an abscess located in the attached gingiva above the tooth #9 (Figure 1).
Radiograph obtained after the traumatic injury showed vertically oriented crown-root fracture
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F2
There was a history of dental trauma six months ago, which had resulted in crown fracture of the tooth #9 (Figure 2).
Periapical radiography six months after the traumatic injury shows j-shaped radiolucency in the mesial aspect of the tooth #9.
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F3
A periapical radiograph was taken and showed a halo or "J "shaped radiolucency around tooth #9 (Figure 3).
Axial view of the CBCT showing bone resorption adjacent to the tooth #9.
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F4
Although no obvious root fractures were observed in the CBCT, the bone resorption pattern adjacent to the root area suggested a root fracture (Figure 4). 
After extraction of the tooth, the socket was gently curetted.
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F5
The socket was gently curetted (12 Miller Surgical curette) to remove any remaining infective or granulation tissue (Figure 5).
(A) Photography of the tooth showing a fracture line in the cervical third of the root. (B) The fracture line was sealed with light curable glass ionomer.
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F6
Using a light-curable Glass Ionomer (Fuji II 2 LC Gold Label, GC, Japan), the fracture line was sealed (Figure 6).
Six-month follow-up. (A) Radiograph shows formation of lamina dura and bone formation in the affected areas. (B) Normal gingival tissue and absence of sinus tract are evident.
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F7
Also, the pain on percussion was diminished, and mobility of the tooth was within the normal range (Figure 7).