Pattern of third molar impaction in Libyan population: A retrospective radiographic study

Hatem, Marwa; Bugaighis, Iman; Taher, Elsanousi M.

doi:10.1016/j.sjdr.2015.04.005

Cited by 24 publications

(43 citation statements)

References 22 publications

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“…This may explain why more females compared to males presented at earlier ages.Mesioangular impaction was reported as the most common impaction in males [4,17] while the most common impaction reported in females was distoangular impaction [2,4]. This is contrary to the findings of this study where a higher percentage of females presented with mesioangular impaction compared to males.…”

Section: Discussioncontrasting

confidence: 78%

“…Previous studies [2,4] reported no statistically significant difference between gender and mandibular third molar impaction while another study [9] reported significant association between gender and number of impacted teeth as well as the presence of impacted mandibular teeth.…”

Section: Introductionmentioning

confidence: 90%

“…Impacted third molars are more likely to occur in the mandible than in the maxilla [2,3]. However, studies have consistently shown that mesioangular impaction is the most common angulations of impaction of mandibular third molars [1,2,[4][5][6].A few studies [4,[6][7][8] tried to determine if there are any gender variations in mandibular third molar impaction with varying reports about the association of gender with third molar impaction. Previous studies [2,4] reported no statistically significant difference between gender and mandibular third molar impaction while another study [9] reported significant association between gender and number of impacted teeth as well as the presence of impacted mandibular teeth.…”

mentioning

confidence: 99%

“…However, studies have consistently shown that mesioangular impaction is the most common angulations of impaction of mandibular third molars [1,2,[4][5][6].…”

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confidence: 99%

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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: Discussioncontrasting

confidence: 78%

Section: Introductionmentioning

confidence: 90%

mentioning

confidence: 99%

“…However, studies have consistently shown that mesioangular impaction is the most common angulations of impaction of mandibular third molars [1,2,[4][5][6].…”

mentioning

confidence: 99%

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Gender Variation in Pattern of Mandibular Third Molar Impaction

Enabulele¹

2017

JDODT

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“…Besides, there were significantly more mesioangular impactions in the mandible (78.5%) and more distoangular (66.9%) and vertical (56.4%) impactions in the maxilla. 9 Mesioangular impactions are probably the most common type and this may be due to their late development and maturation, path of eruption and lack of space in mandible at later age. 1 A study result from Sidlauskas 10 indicated that general lower dental arch crowding is an essential feature of the completed permanent dentition with 90% cases of space lacking.…”

Section: Introductionmentioning

confidence: 99%

Prevalence of third molar impaction in patient with mandibular anterior teeth crowding

2016

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Introduction: Third molar impaction has been a controversial topic among clinician when it comes to mandibular anterior teeth crowding. The aim is to know the prevalence of third molar impaction in patient with mandibular anterior teeth crowding in Orthodontic Department, Dental Hospital Universitas Padjadjaran (RSGM UNPAD), Indonesia. Methods: This was a descriptive research, with non-probability sampling obtained from a population with full arch 32 teeth. Totaling 54 samples from year 2011 to 2014 were obtained. The age of sample range from 15 to 25 years old. Also all panoramic radiographs taken from the year 2011 to 2014 were examined using a computer.The position of third molars were determined by Winter's classification using angle formed between the intersected longitudinal axes of the second and third molars and anterior teeth status by using Little's irregularities index. Results: This study obtained data that as much as 68.52% mesioangular third molar, 19.44% distoangular, 4.63% horizontal, 1.85% buccolingual, and 0% others. In mesioangular impaction condition there was crowding 83.78%, in distoangular condition there was 100% crowding, in horizontal position crowding found 100%, while at buccolingual crowding found 100%.Conclusion: In all positions the third molar impaction was accompanied by crowding of the mandible anterior teeth, with the largest percentage of impaction was the mesioangular position

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Prevalence and pattern of third molars impaction in a large Yemeni sample: a retrospective study

Alhajj,

Amran,

Alhaidary

et al. 2024

Sci Rep

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The prevalence of teeth impaction varies substantially between different populations, and the impaction of third molars is the most commonly recorded. This study aimed to explore the prevalence and pattern of the third molars impactions among Yemeni population. This was a retrospective radiographic study conducted in Yemen between 2022 and 2023. The digital panoramic radiographs were collected from two major X-ray centers in Yemen. The angular position and depth of the impacted third molars were assessed according to the classifications of Winter and of Pell and Gregory, respectively. All radiographs were evaluated twice by one investigator in a two-week interval, and Kappa test was used for intra-rater reliability. Gender-wise differences, differences between both sides, and differences between maxilla and mandible were analyzed using Chi-squared tes with odds ratio (OR) for the risk of impaction. A P-value < 0.05 was considered significant. Panoramic radiographs of 6338 individuals were included. Their mean age was 35.1 ± 13.3 years andand 63.9% were females. A total of 25,352 sites (quadrants) were screened for the presence of thirds molars. Among which, 14,003 third molars (55.3%) were present in one or more sites. There were 1440 individuals (23%) with a total of 2828 impacted third molars (20% of the existing third molars). Females were less likely to have third molar impaction (OR = 0.46, CI 95% = 0.4–0.52). Impaction of the mandibular third molars was significantly more frequent than the maxillary ones (OR = 1.15, CI 95% = 1.04–1.26; P = 0.005). Horizontal and mesioangular impactions were statistically more frequent in the lower molars compared to the upper ones ( P < 0.001 each). Contrastingly, vertical ( P = 0.015), distoangular, and other impactions ( P < 0.001 each)were statistically more frequent in the maxilla. Levels A and B were more frequent in the lower third molars, while level C was predominating in the upper molars ( P < 0.001 each). The prevalence of third molars impaction is more frequent in males and mandibular arch. The angulation and level of impaction seem to be more complicated in the maxillary arch.

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Pattern of third molar impaction in Libyan population: A retrospective radiographic study

Cited by 24 publications

References 22 publications

Gender Variation in Pattern of Mandibular Third Molar Impaction

Gender Variation in Pattern of Mandibular Third Molar Impaction

Prevalence of third molar impaction in patient with mandibular anterior teeth crowding

Prevalence and pattern of third molars impaction in a large Yemeni sample: a retrospective study

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