Prevalence of Mandibular Third Molar Impaction and Agenesis: A Radiographic South Indian Study

Ramamurthy, Ananthalakshmi; Pradha, Jeya; Jeeva, Sathiya; Jeddy, Nadeem; Sunitha, J; Kumar, Selva

doi:10.5005/jp-journals-10011-1289

Cited by 15 publications

(14 citation statements)

References 9 publications

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“…These findings were in consonance with the results of the present study. In this study, gender wise distribution of impaction showed a predilection towards females 148 (59.2%) than males 102 (40.8%) which was in consonance with the study on third molars done by Pushparaja et al [9] whereas in contradiction to the result in a study done by Ramamurthy, et al [17]. Agenesis of third molars was more common in females 18 (3%) than in males 15 (2.5%) and was more common on the right side and these findings are in accordance with that of the study done by Hellman [18] and also radiographic study in south India done by Ramamurthy et al [17].…”

Section: Discussionsupporting

confidence: 87%

Study on the Prevalence of Eruption Status of Third Molars in South Indian Population

Sivaramakrishnan¹,

Ramani²

2015

Biol Med (Aligarh)

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Context: To date, there are very few studies regarding the eruption status of third molars in South Indian population. This study aims to analyse the eruption status of third molars and also the reasons behind their impactions. Aim:To study the prevalence of eruption status of third molars in South Indian population. Materials and methods:Status of third molars was evaluated radio graphically for 150 subjects (75 males and 75 females) and the impaction status, eruption status and congenital absence of third molars were recorded. Statistical analysis used:The results were analysed using chi-square test. Results:Out of the expected number of molars in 150 patients i.e. 600, only 317 molars (52.8%) were completely erupted and 250(41.6%) failed to erupt completely and were impacted and 33(5.5%) molars were congenitally absent. Conclusion:Third molar impactions have a mandibular predisposition. Third molar impaction showed a predilection towards females than males.Agenesis of third molars was more common in females than in males and was more common on the right side. The most common pattern of impaction was Mesioangular followed by vertical which is more common on the left side, horizontal which is common on the right side. The most commonly impacted teeth were 18 and 48. Biology and MedicineCitation: Sivaramakrishnan MS, Ramani P (2015) Study on the Prevalence of Eruption Status of Third Molars in South Indian Population. Biol Med (Aligarh) 7: 245.

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Section: Discussionsupporting

confidence: 87%

Study on the Prevalence of Eruption Status of Third Molars in South Indian Population

Sivaramakrishnan¹,

Ramani²

2015

Biol Med (Aligarh)

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“…32 Therefore, the incidence of third molar impaction is more frequent in females than in males. 1,4 There is agreement amongst researchers that the mandibular third molar teeth in males erupts approximately three to six months earlier than do these teeth in females, consequently resulting in a higher prevalence of impacted mandibular third molars in females. 14,32 The majority of third molar impactions were observed in the age group of 20-25 years (39.2 %), followed by the 16-19 year age interval (33.3 %), with the 26-30 year interval having the least prevalence of impactions (27.5%).…”

Section: Angulation Of Impacted Third Molarsmentioning

confidence: 99%

“…5 It has been recorded that as the mandibular third molar teeth are the last to erupt, they are therefore often impeded in their eruption and either become impacted or remain unerupted within the jaw bone. 1 Impacted teeth are often associated with pericoronitis, incisor crowding, resorption of the adjacent tooth roots and temporo-mandibular joint dysfunction. 1,2 Furthermore, the development of the third molar is used as a tool by many forensic dentists to assign age to young adults who have been victims of violent crimes, fires, motor vehicle and airplane accidents.…”

Section: Introductionmentioning

confidence: 99%

“…1 Impacted teeth are often associated with pericoronitis, incisor crowding, resorption of the adjacent tooth roots and temporo-mandibular joint dysfunction. 1,2 Furthermore, the development of the third molar is used as a tool by many forensic dentists to assign age to young adults who have been victims of violent crimes, fires, motor vehicle and airplane accidents. 6 This study aims to investigate the prevalence of impacted third molar teeth for the Indian population group presenting at public and private Health Dental Facilities that serve the greater eThekwini Metropolitan area.…”

Section: Introductionmentioning

confidence: 99%

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Prevalence of impacted third molars in the South African Indian population of the eThekwini Metropolitan Region

Ishwarkumar¹,

Pillay²,

Haffajee³

et al. 2019

S. Afr. dent. j.

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An impacted tooth is partially erupted or un-erupted, positioned against another tooth, bone or soft tissue in such a way as to prevent further eruption. Normal dental arch relationships are disrupted. This study investigated the prevalence of impactions of third molar teeth amongst Indians residing in the greater eThekwini Metropolitan area. A sample of 274 digital panoramic radiographs was examined. Impacted third molars were identified on 222 scans. The impactions were classified using Winter's, and Pell and Gregory's schemes. Statistical analysis was applied to determine any relationship between impactions and sex and age. Eighty-one percent of individuals presented with at least one impacted third molar, mandibular frequency being significantly higher in both sexes (p-value = 0.000). The most prevalent types of impaction were mesioangular (mandibular)and vertical angulation (maxillary). For level of impaction, Class B and Class A were respectively most prevalent in the mandible and the maxilla. With the exception of angulation of impacted mandibular third molars on the right side, all parameters showed a statistically significant correlation with age (p-value=0.000). The high frequency of these eruption problems in this study may alert maxillo-facial and dental surgeons, and forensic investigators, to potential clinical challenges. Mandible, maxilla, prevalence, third molar impaction, radiology. Tooth impaction is a pathological condition wherein a tooth is completely or partially unerupted and positioned against another tooth, bone or soft tissue, thus being prevented further eruption into its normal functioning position. 1,2 The third molars, which are commonly called wisdom teeth, are the only teeth to erupt during adolescence or early adulthood, often referred to as the age of "wisdom," hence the name. 1 However, variations exist in the age of eruption, which generally occurs between the ages of 18-24 years. 3 The mandibular third molars are the most frequently impacted teeth in humans followed by the maxillary third molars, maxillary canines and mandibular canines. 4 The factors causing third molar impaction include crowding, ectopic position of the tooth germs, supernumerary teeth, genetic factors and soft tissue or bony lesions. 4,5

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“…Third molars are the most common teeth that are impacted among all molars 1 . The reason for their extraction could be due to its impaction or its potential complications damaging the adjacent teeth or the involved tooth itself.…”

Section: Introductionmentioning

confidence: 99%

Incidence of Mandibular Third Molar Impaction in Patients Visiting a Private Dental College

Harsha¹

2014

IOSRJDMS

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Prevalence of Mandibular Third Molar Impaction and Agenesis: A Radiographic South Indian Study

Cited by 15 publications

References 9 publications

Study on the Prevalence of Eruption Status of Third Molars in South Indian Population

Study on the Prevalence of Eruption Status of Third Molars in South Indian Population

Prevalence of impacted third molars in the South African Indian population of the eThekwini Metropolitan Region

Incidence of Mandibular Third Molar Impaction in Patients Visiting a Private Dental College

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