Impacted mandibular third molars: Presentationn and postoperative complications at the Lagos University Teaching Hospital

Gbotolorun, Olalekan Micah; Olojede, A C O; Arotiba, Godwin Toyin; Ladeinde, Akinola Ladipo; Akinwande, J A; Bamgbose, Babatunde O.

doi:10.4314/nqjhm.v17i1.12537

Cited by 31 publications

(40 citation statements)

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“…Female preponderance of impacted third molars have been reported by previous studies [4,[6][7][8][9][14][15][16][17] and this was also observed in this study. However, there are other studies that reported no gender difference [4,5,18] and male preponderance [19].…”

Section: Discussionsupporting

confidence: 79%

Gender Variation in Pattern of Mandibular Third Molar Impaction

Enabulele¹

2017

JDODT

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tion system was adapted to classify occupation into five (5) socioeconomic groups: Professionals and managerial officers and retirees of this type (e.g. doctors, lawyers), skilled workers (e.g. teachers, nurses), semi-skilled workers (e.g. artisans), unskilled workers (e.g. traders) and dependants (students and other unemployed individuals).Inclusion criteria were all consenting patients with at least one impacted mandibular third indicated for extraction. Informed consent was obtained from all the participants. Ethical approval was obtained from the Ethics and Research Committee of the College of Medical Sciences, University of Benin before commencement of the study.Periapical radiographs of the impacted mandibular third molars were exposed using the long cone paralleling technique and a digital probe to enable classification of the type of impaction and any other radiographic findings. The long cone paralleling technique was used for this study due to the fact that it is regarded as the technique of choice following its reduced radiation dose; less magnification and demonstration of the true relationship between the bone height and adjacent teeth [10].The impacted mandibular third molars were classified using the winter's classification based on the inclination of the long axis of the impacted third molar to the long axis of the second molar. The tooth was classified as mesio-angular when the impacted third molar is tilted towards the second molar in a mesial direction; disto-angular when the long axis of the impacted third molar is angled distally / posteriorly away from the second molar; horizontal when the long axis of the impacted third molar is horizontal and vertical when the long axis of the impacted third molar is parallel to the long axis of the second molar [11].The impacted mandibular third molars were also classified as partial impaction when the superficial portion of the tooth was covered only by soft tissue but the height of the tooth's contour was below the level of the surrounding alveolar bone and complete impaction when the tooth was completely encased in bone so that when the gingival is cut and reflected back, the tooth is not seen [12]. MethodologyThis was a prospective cross sectional study involving patients presenting with impacted mandibular third molars to the Dental Centre of the University of Benin Teaching Hospital.The data collection instrument was a pre-tested interviewer administered questionnaire. The questionnaire elicited information on demographic characteristics, number and type of impacted mandibular third molar, caries and cervical resorption status of the adjacent second molar and symptoms associated with the impacted mandibular third molar. The standard International Lab our occupational classifica- AbstractA tooth is said to be impacted when it is obstructed on its path of eruption with the most commonly impacted tooth being the third molar. Various factors have been reported to cause obstruction in the path of eruption of the third molar and these include adjacent to...

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Section: Discussionsupporting

confidence: 79%

Gender Variation in Pattern of Mandibular Third Molar Impaction

Enabulele¹

2017

JDODT

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“…Similar observations apply to the United States, where Gbotolorun et al (15) conducted a three-year prospective study in which the mesioangular position was seen to be the most frequent presentation in 331 extracted lower TMs corresponding to 329 patients. In this same population, Haug et al (16) compiled the data of 63 maxillofacial surgeons who performed a total of 8333 TM extractions in 3760 patients, and likewise found the mesioangular position to be the most common presentation.…”

Section: Discussionmentioning

confidence: 57%

Class, type and position of 9148 surgically removed third molars in 3206 patients: A retrospective study

Morales-Trejo¹,

Rocha-Navarro²,

Acosta-Veloz³

et al. 2012

Med Oral

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Objective: To investigate the class, type, position, diagnosis and most common procedures used in the surgical removal of third molars, and evaluate the sex and age distribution in a representative sample of Mexican patients. Study Design: A retrospective descriptive study was made covering the period 1993-2008 in relation to 9148 extracted third molars in 3206 patients treated in the Dental School of Salle Bajío University, A.C. (Mexico). Patients of either sex and aged 11-59 years, with at least one third molar programmed for surgical removal, were included in the study. A descriptive statistical study was made. Results: The mean patient age was 27.6 ± 10.6 years. There were 2093 females (65.3%) and 1111 males (34.6%). In relation to the 4025 upper molars, extraction was decided for prophylactic reasons in 3827 cases (95.08%). Type A presentations were recorded in 1929 cases (47.9%), with a vertical position in 1931 teeth (48%). In relation to the 5123 lower third molars, extraction was likewise most often indicated for prophylactic reasons (4424 cases, 86.36%). A total of 2353 teeth corresponded to type A (45.9%), 2545 were class I cases (49.7%), and a mesioangular position was observed in 1850 cases (36.1%). Conclusions: The present study shows that in Mexican patients, upper third molars most often correspond to type A and class I, with a vertical position, while lower third molars predominantly correspond to type A and class I, with a mesioangular position. This information can help dental surgeons take better decisions before and after surgery, to the benefit of their patients. Key words:Third molars, retrospective review, surgical removal.

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“…Studies in Nigeria showed that mesioangular type of impaction was the most frequently seen as well. [9,14] Obeichina et al reported 48.2% for mesioangular impaction and 30.23% for vertical impaction of third molar teeth presenting with symptoms. [9] Mesioangular impaction was also reported as the most common finding in Singapore Chinese population, (80%) and Korean populations (46.5%)studied.…”

Section: Discussionmentioning

confidence: 99%