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A 7-YEAR RETROSPECTIVE ANALYSIS ON SURGICAL REMOVAL OF IMPACTED
MANDIBULAR THIRD MOLAR AT A TERTIARY CARE CENTER IN KUANTAN, PAHANG
NMRR-18-4000-41593

Soh CL, Peh GT, Kamini GR
Introduction: Surgical removal of Impacted Mandibular Third Molars is one of the most
common dentoalveolar surgery performed. Common post-operative complications of
third molar removal are alveolar osteitis, infection, bleeding and paraesthesia of the
inferior alveolar nerve and lingual nerve. Objectives: The aim of this study is to determine
the frequency of post-operative complications and the associated contributing factors in
impacted mandibular third molar surgery. Materials and Methods: This retrospective
study involved 1,577 cases of surgical removal of impacted Mandibular Third Molars in
Hospital Tengku Ampuan Afzan, Kuantan between January 2012 and December 2018.
Patient’s records were traced and intraoral periapical radiographs or orthopantomogram
was analysed. Impacted tooth was classified according to Pell and Gregory classification
of impacted Mandibular Third Molar and difficulty scored according to Pederson Index.
Data were analysed by descriptive statistics, Chi-squared and Fisher’s exact tests
appropriately at significant level of P Value <0.05. Results: The post-operative
complication rate reported was 3.55 % (56/1577). Of those, the most common
complication observed was paraesthesia at 39.3% (22/56), followed by dry socket (37.5%
(21/56) and post-operative infection 23.2% (13/56). Difficulty score and type of
anaesthesia did not affect the rates of complication. Operator’s experience was
significantly related to paraesthesia (P-value < 0.05). Conclusion: Operator’s experience
did not affect the rates of dry socket and infection. In conclusion, rate of post-operative
complication of surgical removal of Impacted Mandibular Third Molar Surgery was
relatively low and it is not related to difficulty score and type of anaesthesia.

Published in Malaysian Dental Journal. 2020(1):43-58.

Dr Soh Chen Loong
Dr Tan Peh Ge
Dr Kamini a/p G Raman
Department of Oral and Maxillofacial Surgery
Tengku Ampuan Afzan Hospital
Kuantan Pahang

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