Evaluation of Risk Factors for External Root Resorption and Dental Caries of Second Molars Associated With Impacted Third Molars

Tunç, Serap Keskin; Koç, Alaettin

doi:10.1016/j.joms.2020.04.041

Cited by 16 publications

(22 citation statements)

References 29 publications

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“…The results showed that the overall prevalence of adjacent tooth root resorption caused by LIMTMs was 8.81%, which was lower than in previous studies [ 31 – 33 ]. This may have occurred because this study focused on LIMTMs (full bony impaction), whereas previous studies focused on soft tissue-impacted third molars.…”

Section: Discussioncontrasting

confidence: 67%

Full life cycle changes of low impacted mandibular third molar associated cystic lesions and adjacent tooth root resorption: a retrospective study

Zhang,

Zhou

et al. 2024

BMC Oral Health

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Objective Low impacted third molars are usually asymptomatic and are often found by X-ray examination. The removal of asymptomatic low impacted third molars is one of the most controversial clinical issues in oral and maxillofacial surgery. Methods In this study, 806 patients with low impacted mandibular third molars (LIMTMs) (full bony impaction) were analyzed to determine the prevalence and risk factors for cystic lesions and adjacent tooth root resorption throughout the patients’ entire life cycle. Results The results showed that the prevalence of adjacent tooth root resorption and cystic lesions was age-related, exhibiting a trend of first increasing and then decreasing; prevalence peaked at the age of 41 to 45 years old, the prevalence rates were 12.50% and 11.11% respectively. And the lowest prevalence rate was 2.86% and 2.44% in ≥ 61 group and 56- to 60-year age group respectively. Age was an independent risk factor for adjacent tooth root resorption of LIMTMs, whereas age and impaction type (especially inverted impaction) were independent risk factors for cystic lesions. Conclusions The full life cycle management strategy for LIMTMs may need to be individualized. Surgical removal is recommended for LIMTMs in patients younger than 41 to 45 years, especially for inverted, mesioangular, and horizontally impacted LIMTMs. LIMTMs in patients older than 41 to 45 years may be treated conservatively with regular follow-up, but surgical removal of inverted impacted LIMTMs is still recommended to avoid cyst formation.

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Section: Discussioncontrasting

confidence: 67%

Full life cycle changes of low impacted mandibular third molar associated cystic lesions and adjacent tooth root resorption: a retrospective study

Zhang,

Zhou

et al. 2024

BMC Oral Health

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“…Previous studies with CBCT exams reported maxillary M2 ERR frequencies of 14.3%, 3 21%, 4 and 32.6%, 5 and mandibular M2 ERR frequencies of 20.17%, 6 31%, 3 and 52.9%. 5 ERR was more commonly observed in the mandible than in the maxilla, but the study of Keskin Tunç and Koc 13 reported more ERR in the maxilla than in the mandible. Li et al 5 studied differences in the characteristics of ERR between the maxilla and mandible.…”

Section: Discussionmentioning

confidence: 91%

“…The angulation of impaction might affect the frequency of ERR. Keskin Tunç and Koc 13 reported that a mesial inclination was associated with an increased risk for ERR. The prevalence of ERR in M2s was much higher (49.43%) with mesially inclined impacted maxillary and mandibular M3s.…”

Section: Discussionmentioning

confidence: 99%

“…In this study, there was no significant difference in ERR according to sex, which corresponds to previous results. 6 9 However, Keskin Tunç and Koc 13 reported a higher rate in female patients, and some authors reported a higher risk in male patients. 20 22 Thus, the possibility of a sex difference in ERR remains unclear.…”

Section: Discussionmentioning

confidence: 99%

“…However, there was no significant relationship between age and ERR in this study, which also agrees with previous studies. 7 13 Compared to other studies, the present study included patients with a relatively narrow age range. This might explain the absence of a significant relationship between age and ERR.…”

Section: Discussionmentioning

confidence: 99%

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Risk factors for external root resorption of maxillary second molars associated with third molars

Choi

2022

Imaging Sci Dent

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Purpose This study aimed to evaluate the diagnostic performance of panoramic images compared to cone-beam computed tomography (CBCT) imaging for maxillary third molar (M3)-associated external root resorption (ERR), and to identify the risk factors of ERR on panoramic images. Materials and Methods The study population was composed of all patients who underwent panoramic imaging at Dankook University Dental Hospital from May to October 2019. In total, 397 cases of maxillary M3s in 247 patients (147 men and 100 women) were included. The diagnostic accuracy of ERR in panoramic images compared to CBCT images was evaluated using the chi-square test. To identify risk factors for ERR, dental records and panoramic findings were evaluated by logistic regression analysis. Results The diagnostic accuracy of ERR on panoramic images was 0.79 compared to CBCT images ( P <0.05). Superimposition of M3s onto second molars (M2) was associated with an approximately 33 times higher risk of ERR than separated M3s ( P <0.05). Impacted M3s showed a 5 times higher risk of ERR than erupted M3s ( P <0.05). Conclusion ERR related to M3s is a common clinical condition, and superimposition of M3 onto M2 on panoramic images was the most important risk factor for ERR. It seemed that CBCT examinations for maxillary M3s might be indicated for ERR diagnosis especially if panoramic radiographs show superimposition of M3 onto M2. Impaction itself was also a risk factor, and it should be carefully examined.

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Prevalence and predictive parameters of external root resorption caused by retained wisdom teeth

Baensch,

Meißner,

Will

et al. 2024

Clin Oral Invest

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Objectives The aim of this study was to estimate the prevalence and severity of external root resorption (RR) caused by retained third molars (M3), to compare the sensitivity of panoramic radiography (PAN) and cone beam computed tomography (CBCT) and to determine predictive factors for root resorption. Materials and methods In a retrospective cross-sectional analysis, we included patients (N = 367) who underwent PAN and CBCT imaging between December 2017 and July 2019. Previous orthodontic treatment, age, gender, superimposition of second molars (M2) and M3 on PAN, retention depth, inclination angle and vertical level of contact with the M2 were used as predictor variables. The outcome variable was RR of the M2, graded according to Ericson et al. [1]. Subgroup analyses compared patients with and without suspected resorption in the PAN. Results While less than 5% of PANs suggested RR associated with M3, CBCT showed RR in 20% of all M2 with adjacent retained M3. The angle of inclination of M3, patient age and vertical level of molar contact emerged as predictive parameters, with mesial inclination, older age and deeper retention associated with increased severity of M2. Conclusion Within the limitations of our study, these data confirm the poor performance of PAN in the diagnosis of RR. CBCT may be helpful in detecting RR in mesioangulated and deeply retained M3 in elderly patients, even when PAN did not suggest pathology. Clinical relevance Our study may help to decide whether CBCT should be considered prior to M3 surgery.

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Evaluation of Risk Factors for External Root Resorption and Dental Caries of Second Molars Associated With Impacted Third Molars

Cited by 16 publications

References 29 publications

Full life cycle changes of low impacted mandibular third molar associated cystic lesions and adjacent tooth root resorption: a retrospective study

Full life cycle changes of low impacted mandibular third molar associated cystic lesions and adjacent tooth root resorption: a retrospective study

Risk factors for external root resorption of maxillary second molars associated with third molars

Prevalence and predictive parameters of external root resorption caused by retained wisdom teeth

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