ArticleSurgical and radiologic anatomy : SRA2025
Radiological analysis of palatal arterial anatomy for periodontal surgery: insights from 3D-RA.
Article in Surgical and radiologic anatomy : SRA, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
objectiveThis study aimed to comprehensively evaluate the detailed arterial anatomy of the palatal mucosa, emphasising the greater palatine artery (GPA) and lesser palatine artery (LPA), through the use of three-dimensional rotational angiography (3D-RA). This detailed vascular analysis aims to inform clinical decisions and reduce the risk of vascular injury during palatal graft harvesting procedures.
methodsA retrospective analysis of radiological data was conducted on 80 consecutive patients who underwent cerebral or carotid digital subtraction angiography (DSA) incorporating 3D-RA imaging. Detailed measurements were obtained for the GPA, descending palatine artery (DPA), and LPA, including arterial diameters, branching patterns, and their spatial relationships with palatal mucosal thickness and vault morphology. Based on GPA and LPA branching patterns, the vascular supply to the hard palate was classified.
resultsThe GPA was classified into three branching patterns, with Type I (absence of medial branch) being most prevalent (65%), typically accompanied by the presence of LPA contributions to the medial hard palate. Type II (MB coursing anterior to the palatal spine) was identified in 23.75% of patients. Type III was present in 11.25%, The mean diameter of the GPA was 0.99 ± 0.16 mm, while the DPA was significantly larger in males (p = 0.036). The GPA's lateral branch narrowed anteriorly, with the smallest mucosal-to-vessel distance measured at the first premolar region (2.55 ± 1.11 mm), indicating a heightened risk for surgical injury. No significant relationship was found between palatal vault morphology and mucosal thickness.
conclusionThe LPA contributed to medial hard palate perfusion in the absence of the GPA's medial branch, indicating its surgical relevance in mucogingival procedures.
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