Root resorption of mandibular second molar teeth associated with the presence of the third molars

Abstract

Although pressure resorption of second molars is associated with impacted and/or erupting third molars, the relationship between pressure resorption and age is unclear. In order to investigate this relationship, 3883 dental radiographs were studied in 3174 individuals of various ages. The incidence of superimposition of the second molar on the third molar was not elevated in any subgroup except that of women of 16-40 years of age. There were no age or sex differences for the incidence of second molar root resorption. In older individuals, root resorption associated with a completely impacted third molar was more frequent than with a partially impacted third molar, and root resorption at the apex was mainly seen in individuals over 50 years of age. There was a higher incidence of superimposition and root resorption in men than women. Apical root resorption may be seen long after the formation of completely impacted third molars in both genders.

Impacted Mandibular Third Molars: A Retrospective Study of 1198 Cases to Assess Indications for Surgical Removal, and Correlation with Age, Sex and Type of Impaction—A Single Institutional Experience

“…We found a low frequency (2.09 %) of root resorption of adjacent teeth. This agrees with the findings of most previous studies [4,15,16] but contrasts with the findings of earlier investigators [17,18].…”

Impacted Third Molars and Its Propensity to stimulate External Root Resorption in Second Molars: Comparison of Orthopantomogram and Cone Beam Computed Tomography

“…11,17,27,34,38 Furthermore, carious lesions are mostly symptomatic when compared with ERR, which is usually asymptomatic and aseptic, unless the pulp cavity has been involved or the lesion has been secondarily infected. 39 Several studies have proved that 3D imaging provides accurate diagnoses in determining ERR associated with the impacted teeth.…”

“…15 The known risk factor for tooth resorption is the mechanical force due to the superimposition of the third molar, and the inflammation of the periodontium may further complicate the condition 16 or might even secrete the inflammatory mediators that assign the osteoclast toward resorption of the mineralized tissue by stimulating the reduced dental epithelium of the impacted tooth. 17,18 External root resorption usually does not present with any signs and symptoms. 19 Hence, it is diagnosed based on its detection during radiographic examinations 20 and to preserve the involved teeth; the key factor is early diagnosis.…”

“…Cone beam computed tomography is considered as the desirable tool for detecting subtle changes, such as ERR because it helps in assessing the region of interest in all the planes and has relatively less amount of radiation when compared with CT scans. 27 Most of the available data on ERR have come from case reports [28][29][30] and retrospective studies of panoramic and periapical radiographs, 11,17,27,[31][32][33][34] and very few studies have been performed comparing panoramic imaging with CBCT, and the information available is still limited. Taking into consideration the importance of diagnosis of ERR radiographically, the study aimed to compare panoramic radiography and CBCT for determining ERR of second molars.…”

The Different Types of Flaps in the Surgical Relations of the Third Impacted Molars–Literature Review

“…The impacted third molar surgery and/or partially impacted is the most common procedure in oral surgery and maxillofacial [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18], ranging from therapeutic indications, previous history of infection [19][20][21][22] periodontal disease [23], pericoronitís [30][31][32][33],operating an inexplicable [34] pain associated with the third molar [35][36], pain, intractable caries prevention caries [37][38][39][40][41][42][43], tooth root resorption adjacent [35,[44][45][46], orthodontic considerations incisor crowding lowers [47][48][49][50][51][52], prosthetic considerations [53], prevention and/or association of fractures mandibulars [14,…”