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Maxillofac Plast Reconstr Surg. 2015 May 03;37(1):13. doi: 10.1186/s40902-015-0013-5. eCollection 2015 Dec.

The quantitative sensory testing is an efficient objective method for assessment of nerve injury.

Maxillofacial plastic and reconstructive surgery

Young-Kyun Kim, Pil-Young Yun, Jong-Hwa Kim, Ji-Young Lee, Won Lee

Affiliations

  1. Department of Oral and Maxillofacial Surgery, Section of Dentistry, Seoul National University Bundang Hospital, Gyeonggi, South Korea.
  2. Department of Dentistry, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, 222 Banpo-daero, Seocho-gu, Seoul 137-701 Republic of Korea.

PMID: 26317084 PMCID: PMC4544621 DOI: 10.1186/s40902-015-0013-5

Abstract

BACKGROUND: This study evaluated Somatosensory evoked potentials (SEP), Quantitative sensory testing (QST), and thermography as diagnostic methods for nerve injury.

METHODS: From 2006 through 2011, 17 patients (mean age: 50.1 years) from OOOO Hospital who sought care for altered sensation after dental implant treatment were identified. The mean time of objective assessment was 15.2 months after onset.

RESULTS: SEP of Inferior alveolar nerve(IAN) was 15.87 ± 0.87 ms on the normal side and 16.18 ± 0.73 ms on the abnormal side. There was delayed N20 latency on the abnormal side, but the difference was not statistically significant. In QST, the abnormal side showed significantly higher scores of the current perception threshold at 2 KHz, 250 Hz, and 5 Hz. The absolute temperature difference was 0.55°C without statistically significance.

CONCLUSION: These results indicate that QST is valuable as an objective method for assessment of nerve injury.

Keywords: Nerve injury; Quantitative Sensory Testing; Somatosensory Evoked Potentials; Thermography

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