However, when traumatic injury occurs to the Inferior Alveolar Nerve (IAN) or Lingual Nerve (LN), clinicians face one of the most challenging complications in dentistry.
Postoperative neurosensory disturbances, such as persistent hypoesthesia, anesthesia, dysesthesia, or chronic neuropathic pain, impose a heavy psychological and social burden on patients, drastically reducing their quality of life.
Because traumatic nerve injuries frequently go underreported and lack a single "gold standard" diagnostic tool, executing a systematic diagnostic and therapeutic framework is paramount to achieving functional recovery.
The comprehensive scoping review published in Clinical Oral Investigations (Springer Link), titled “Clinical insights into traumatic injury of the inferior alveolar and lingual nerves: a comprehensive approach from diagnosis to therapeutic interventions,” consolidates current literature across PubMed, Embase, and Cochrane to deliver a definitive clinical roadmap for managing peripheral trigeminal nerve trauma.
Key clinical takeaways from this comprehensive review include:
✔ Multimodal Diagnostic Framework: Emphasizes that accurate assessment requires combining thorough anamnesis with clinical-neurological evaluations—such as Qualitative Sensory Testing (QualST) bedside tests and Quantitative Sensory Testing (QST)—alongside advanced imaging like Magnetic Resonance Imaging (MRI) to visualize neural tissue integrity beyond conventional bone margins.
✔ Prompt Action for Reversible Triggers: Highlights the necessity of immediate clinical intervention when reversible etiologies are present (e.g., removing compressing implants, overextended root canal filling materials, or hematomas) to prevent irreversible neurodegeneration.
✔ Surgical Repair & Microsurgical Outcomes: Reviews surgical interventions—including neurolysis/decompression, direct neurorrhaphy (for gaps less than or equal to 5 mm), and nerve grafting or reconstruction—showing favorable functional recovery when timely microsurgical intervention is executed.
✔ Targeted Neuropathic Pain Protocols: Outlines evidence-based conservative regimens for managing neuropathic pain, integrating topical applications (e.g., topical anesthesia, capsaicin) with systemic pharmacological therapies (tricyclic antidepressants, SNRIs, and anticonvulsants/antipsychotics).
✔ Tailored, Patient-Centric Care: Reinforces that treatment must be customized to the specific mechanism, severity, and timing of the injury, as individualized care directly correlates with restored functionality and improved patient quality of life.
By incorporating structured sensory testing, early imaging, and a combined surgical-pharmacological workflow into clinical practice, practitioners can mitigate long-term neurological morbidity, handle nerve injuries with confidence, and deliver predictable patient-centered outcomes.
📄 Expand your clinical expertise: Click the link below to read the complete peer-reviewed scoping review and download the full PDF version directly on Springer Link.
