Oral surgery, oral medicine, oral pathology and oral radiology · 2026
Characteristics of sialoliths detected on CBCT in patients who had prior US: the impact of size, morphology and location.
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Mishael Amer, Alterman Michael, Yavnai Nirit, Abba Michael, Aframian Doron J, Appelbaum Liat, Nadler Chen
Аннотация
OBJECTIVE: Ultrasonography (US) is commonly used in the investigation of sialolithiasis, whereas Cone-Beam Computed Tomography (CBCT) has recently emerged as a complementary imaging modality. This study aimed to characterize sialoliths detected exclusively on CBCT, and not documented in prior US reports.
STUDY DESIGN: CBCT scans of patients with suspected parotid or submandibular sialolithiasis with prior US were retrospectively analysed. Cases were stratified into three groups according to whether the same number, fewer, or none of the sialoliths detected on CBCT had been documented in prior US reports. The size and location of the sialoliths were compared between groups. Subsequently, individual sialoliths detected exclusively on CBCT were characterized.
RESULT: We included 37 salivary glands with 49 sialoliths. Independent analysis showed that most sialoliths (N = 31; 63.3%) were detected only on CBCT and were significantly smaller than those detected on both CBCT and prior US (P = .029). ROC-derived cutoff of 3.3 mm moderately discriminated exclusive CBCT detection. Although not statistically significant, these sialoliths were more often round, multiple, and located in the middle or distal thirds of the submandibular duct.
CONCLUSIONS: CBCT demonstrated small, additional and submandibular distally located sialoliths, not documented in prior US reports, supporting its complementary role in suspected sialolithiasis.
STUDY DESIGN: CBCT scans of patients with suspected parotid or submandibular sialolithiasis with prior US were retrospectively analysed. Cases were stratified into three groups according to whether the same number, fewer, or none of the sialoliths detected on CBCT had been documented in prior US reports. The size and location of the sialoliths were compared between groups. Subsequently, individual sialoliths detected exclusively on CBCT were characterized.
RESULT: We included 37 salivary glands with 49 sialoliths. Independent analysis showed that most sialoliths (N = 31; 63.3%) were detected only on CBCT and were significantly smaller than those detected on both CBCT and prior US (P = .029). ROC-derived cutoff of 3.3 mm moderately discriminated exclusive CBCT detection. Although not statistically significant, these sialoliths were more often round, multiple, and located in the middle or distal thirds of the submandibular duct.
CONCLUSIONS: CBCT demonstrated small, additional and submandibular distally located sialoliths, not documented in prior US reports, supporting its complementary role in suspected sialolithiasis.