Evaluation of the Outcomes of Coronectomy Procedure versus Surgical Extraction of Lower Third Molars Which Have a High Risk for Inferior Alveolar Nerve Injury: A Systematic Review

Background and Objectives. Surgical extraction of mandibular third molars (3rd M) may cause inferior alveolar nerve injury (IANI), whereas in coronectomy the crowns of 3rd M are removed, keeping the roots intact to avoid IANI. This study aims to review the literature which evaluated coronectomy effe...

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Autores principales:	Nedal Abu-Mostafa, Lulwah M. AlRejaie, Fahad A. Almutairi, Ruba A. Alajaji, Maram M. Alkodair, Nourah A. Alzahem
Formato:	article
Lenguaje:	EN
Publicado:	Hindawi Limited 2021
Materias:	Dentistry RK1-715
Acceso en línea:	https://doaj.org/article/8156bc43cfc44c2f8e958bfdec9b3748
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spelling	oai:doaj.org-article:8156bc43cfc44c2f8e958bfdec9b37482021-11-22T01:11:01ZEvaluation of the Outcomes of Coronectomy Procedure versus Surgical Extraction of Lower Third Molars Which Have a High Risk for Inferior Alveolar Nerve Injury: A Systematic Review1687-873610.1155/2021/9161606https://doaj.org/article/8156bc43cfc44c2f8e958bfdec9b37482021-01-01T00:00:00Zhttp://dx.doi.org/10.1155/2021/9161606https://doaj.org/toc/1687-8736Background and Objectives. Surgical extraction of mandibular third molars (3rd M) may cause inferior alveolar nerve injury (IANI), whereas in coronectomy the crowns of 3rd M are removed, keeping the roots intact to avoid IANI. This study aims to review the literature which evaluated coronectomy effectiveness as an alternative for surgical extraction of 3rd M that have a high risk of trauma to the inferior alveolar canal. A computerized literature search was conducted on the databases PubMed, SCOPUS, and ScienceDirect to gather information regarding the coronectomy procedure from inception till June 5, 2020. A total of 97 articles were identified, and seven studies were finally included for conducting qualitative analysis: 3 randomized clinical trials and 4 clinical controlled trials. Cochrane Collaboration’s tool was used for assessing risk of bias. Coronectomy procedures were performed on 15–171 teeth. In the control group, extraction procedures were done on 15–178 teeth. Results. No study reported permanent inferior alveolar nerve injury (p-IANI) regarding coronectomy; however, transient inferior alveolar nerve injury (t-IANI) was reported in 0–2.20% of successful coronectomy and 0–8% of failed coronectomy. Postextraction t-IANI ranged from 0% to 16.66% while p-IANI from 0% to 3.63%. In 5 studies, root migration occurred in 2% to 85.3% of cases and the distance rate was 2.33–3.43 mm at 6 months postoperatively; then the migration gradually decreased and stopped at 12 months. Conclusion. This systematic review revealed that coronectomy is an efficient alternative for the management of impacted 3rd M with a high risk of IANI. Patients who got antibiotics postcoronectomy procedures had lower infection rates than those who did not receive antibiotic therapy. We recommend further research on coronectomy with longer follow-up periods to assess the retained roots’ long-term outcomes and to assess the effect of antibiotics administration on postcoronectomy infection rate. This systematic review is registered under number CRD42020198394.Nedal Abu-MostafaLulwah M. AlRejaieFahad A. AlmutairiRuba A. AlajajiMaram M. AlkodairNourah A. AlzahemHindawi LimitedarticleDentistryRK1-715ENInternational Journal of Dentistry, Vol 2021 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Dentistry RK1-715
spellingShingle	Dentistry RK1-715 Nedal Abu-Mostafa Lulwah M. AlRejaie Fahad A. Almutairi Ruba A. Alajaji Maram M. Alkodair Nourah A. Alzahem Evaluation of the Outcomes of Coronectomy Procedure versus Surgical Extraction of Lower Third Molars Which Have a High Risk for Inferior Alveolar Nerve Injury: A Systematic Review
description	Background and Objectives. Surgical extraction of mandibular third molars (3rd M) may cause inferior alveolar nerve injury (IANI), whereas in coronectomy the crowns of 3rd M are removed, keeping the roots intact to avoid IANI. This study aims to review the literature which evaluated coronectomy effectiveness as an alternative for surgical extraction of 3rd M that have a high risk of trauma to the inferior alveolar canal. A computerized literature search was conducted on the databases PubMed, SCOPUS, and ScienceDirect to gather information regarding the coronectomy procedure from inception till June 5, 2020. A total of 97 articles were identified, and seven studies were finally included for conducting qualitative analysis: 3 randomized clinical trials and 4 clinical controlled trials. Cochrane Collaboration’s tool was used for assessing risk of bias. Coronectomy procedures were performed on 15–171 teeth. In the control group, extraction procedures were done on 15–178 teeth. Results. No study reported permanent inferior alveolar nerve injury (p-IANI) regarding coronectomy; however, transient inferior alveolar nerve injury (t-IANI) was reported in 0–2.20% of successful coronectomy and 0–8% of failed coronectomy. Postextraction t-IANI ranged from 0% to 16.66% while p-IANI from 0% to 3.63%. In 5 studies, root migration occurred in 2% to 85.3% of cases and the distance rate was 2.33–3.43 mm at 6 months postoperatively; then the migration gradually decreased and stopped at 12 months. Conclusion. This systematic review revealed that coronectomy is an efficient alternative for the management of impacted 3rd M with a high risk of IANI. Patients who got antibiotics postcoronectomy procedures had lower infection rates than those who did not receive antibiotic therapy. We recommend further research on coronectomy with longer follow-up periods to assess the retained roots’ long-term outcomes and to assess the effect of antibiotics administration on postcoronectomy infection rate. This systematic review is registered under number CRD42020198394.
format	article
author	Nedal Abu-Mostafa Lulwah M. AlRejaie Fahad A. Almutairi Ruba A. Alajaji Maram M. Alkodair Nourah A. Alzahem
author_facet	Nedal Abu-Mostafa Lulwah M. AlRejaie Fahad A. Almutairi Ruba A. Alajaji Maram M. Alkodair Nourah A. Alzahem
author_sort	Nedal Abu-Mostafa
title	Evaluation of the Outcomes of Coronectomy Procedure versus Surgical Extraction of Lower Third Molars Which Have a High Risk for Inferior Alveolar Nerve Injury: A Systematic Review
title_short	Evaluation of the Outcomes of Coronectomy Procedure versus Surgical Extraction of Lower Third Molars Which Have a High Risk for Inferior Alveolar Nerve Injury: A Systematic Review
title_full	Evaluation of the Outcomes of Coronectomy Procedure versus Surgical Extraction of Lower Third Molars Which Have a High Risk for Inferior Alveolar Nerve Injury: A Systematic Review
title_fullStr	Evaluation of the Outcomes of Coronectomy Procedure versus Surgical Extraction of Lower Third Molars Which Have a High Risk for Inferior Alveolar Nerve Injury: A Systematic Review
title_full_unstemmed	Evaluation of the Outcomes of Coronectomy Procedure versus Surgical Extraction of Lower Third Molars Which Have a High Risk for Inferior Alveolar Nerve Injury: A Systematic Review
title_sort	evaluation of the outcomes of coronectomy procedure versus surgical extraction of lower third molars which have a high risk for inferior alveolar nerve injury: a systematic review
publisher	Hindawi Limited
publishDate	2021
url	https://doaj.org/article/8156bc43cfc44c2f8e958bfdec9b3748
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Evaluation of the Outcomes of Coronectomy Procedure versus Surgical Extraction of Lower Third Molars Which Have a High Risk for Inferior Alveolar Nerve Injury: A Systematic Review

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