Anterior arch crowding: a possible predictor for mandibular third molar impaction

Lakhani, Jitendra D.; Kadri, Wahab Buksh; Mehdi, Hasan

doi:10.1016/j.ijom.2017.02.388

Cited by 2 publications

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“…This is an elective surgery, performed after an accurate diagnosis and included in specific treatment plans, especially regarding mandibular third molars, which have a high probability to be impacted in accordance with their development stages [1]. Allowing the growth of the wisdom tooth is troublesome, so knowing its development stages might prevent the recurring inclusions that occur in 24-73% of adolescents in Europe [2,3]. Development of the wisdom tooth occurs inside the bone crypt at the mandibular surface; between the ages of 6 and 8, the germ is located at the inner mesial corner between the ramus and the body of the mandible, on the lower margin of the temporal crest.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, some authors have suggested the use of germectomy treatment to prevent inclusion of the mandibular third molars, avoiding a possible relapse of orthodontic treatment [8]. In addition, some authors have also proved a correlation between the inclusion and the number of roots of the third molar, the ramus and the alveolar bone height [2,9]. Indeed, there is greater probability of inclusion in cases where the tooth has more than two roots, the ramus has shown a lesser development or the alveolar nerve is higher [10].…”

Section: Introductionmentioning

confidence: 99%

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The Evaluation of Further Complications after the Extraction of the Third Molar Germ: A Pilot Study in Paediatric Dentistry

et al. 2021

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Some authors suggest germectomy to prevent the impaction of mandibular third molars, which can cause anterior crowding. The aim of the study, conducted with 2 years of follow-up, was to clarify when the extraction of the germ of the third molar is optimal, together with possible post-operative complications. A new surgical approach was performed through the application of a combined suture, which can provide better wound healing. The study was performed on 25 patients with a mean age of 15.44 ± 2.06. Based on orthodontic and surgical indications, 46 germectomies were performed. Follow-ups were conducted after 1 week, 2 weeks, 4 weeks, 1 year and 2 years. All procedures were carried out by the same operator and were standardized. Data analysis was conducted using R-Software. Statistical evaluation used the chi-squared test and the Monte Carlo test. The level of significance was set as 0.05. Results showed that out of 46 germectomies, the prevalence of complications was 4.2% for two patients (8%). Both complications were observed in male patients. In the first case, the patient (at Nolla stage 7) showed delayed onset infections after four weeks; in the second case, the patient (at Nolla stage 6) showed bleeding immediately after surgery and suture. With reference to delayed onset infections, no statistically significant association was found among gender (χ2 = 0.719; p = 0.396), germ development stage (χ2 = 2.595; p = 0.658) or Winter’s classifications (χ2 = 0.046; p = 0.829); similarly, no significant associations were found among bleeding, gender (χ2 = 0.719; p = 0.396), germ development stage (χ2 = 2.595; p = 0.658) or Winter’s classification (χ2 = 0.046; p = 0.829). From our results, it is also possible to state that post-operative complications following germectomy of the mandibular third molar germ in adolescence occur in a significantly reduced percentage of patients, so this oral surgery treatment becomes a reliable surgical technique in adolescence.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The Evaluation of Further Complications after the Extraction of the Third Molar Germ: A Pilot Study in Paediatric Dentistry

et al. 2021

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“…4,5 Dado que estas nuevas técnicas evitan las exodoncias de bicúspides, es requerido por tanto el espacio ocupado por los terceros molares para la distalización de la arcada superior o la inferior dependiendo de la maloclusión. 6 Por otro lado, la mayoría de los estudiosos tales como Mettes et al (2005), Richardson (1989), Lindqvist & Thilander (1982), Carbonell (1999), Harradine et al (1998) y muchos otros, llegan a la conclusión que «la remoción de los terceros molares para reducir el grado de apiñamiento, no puede ser justifi cada»; sin embargo, autores como Sato, Riccketts y Zachrisson son partidarios de la extracción preventiva de los terceros molares debido a su importancia como factor coadyuvante en la recidiva de los tratamientos de ortodoncia, especialmente el apiñamiento incisivo, y en particular en la orientación de Sato, debido a su importancia en el desarrollo de la discrepancia posterior, que como se ha visto es un factor etiopatogénico muy importante en el desarrollo de las maloclusiones esqueletales tales como clases III y mordidas abiertas. 7 En contraparte algunos autores reportan que los tejidos periodontales en general no presentan cambios signifi cativos y que en muchos casos se evidencia una mejoría del estado de salud periodontal de los tejidos adyacentes al segundo molar, 8,9 pero que sí representa un riesgo en pacientes con periodonto sano.…”

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Evaluación de las dimensiones del hueso alveolar distal del segundo molar a través de cone-beam post-extracción del tercer molar

Chois¹,

Yepes²,

Villarreal³

et al. 2016

Revista Mexicana de Ortodoncia

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Several studies have assessed the quality of periodontal tissues adjacent to the second molar after extraction of third molars using clinical assessment and radiographs. In clinical practice, the space occupied by these molars is used to perform distalizing movements and tissue integrity is a condition to do it, so it is necessary to evaluate with suitable methods such as digital volume tomography alveolar bone quality, before and after the removal of third molars. The aim of the study was to evaluate through cone beam dimensions the distal alveolar bone of the second molar after third molar extractions in patients undergoing orthodontic treatment. A quasi-experimental study was implemented with a six months follow up in patients with orthodontic treatment that attended the post-graduate clinic of the University of Cartagena. The sample consisted of 128 molars of 32 individuals treated with fi xed appliances. Bone dimensions behaved as follows: height was 3.44 mm T0, T1 of 3.96 mm and 3.44 mm in T2; the thickness was 2.90 mm T0, T1 was 2.79 mm and 3.37 mm T2; T0 width was 15.58 mm, 15.50 mm in T1 and T2 of 15.19 mm. The alveolar process can recover its dimensions after extraction thanks to dental movements generated by orthodontics thus maintaining a stability which results in periodontal health. INTRODUCCIÓNLos terceros molares son las piezas dentales que frecuentemente presentan ausencia congénita e impactación, se encuentran presente en un 90% de la población de la cual por lo menos el 33% presenta un tercer molar impactado, y representan además el 98% de todos los dientes impactados. El tercer molar mandibular presenta una mayor frecuencia de importación y la incidencia varía del 9.5% al 68% en diferentes poblaciones. 1 La difi cultad en la erupción de los terceros molares, en especial de los inferiores, se debe a su formación tardía y a la evolución fi logenética de la Evaluación de las dimensiones del hueso alveolar distal del segundo molar a través de cone-beam post-extracción del tercer molar Evaluation of dimensions of the distal alveolar bone of the second molar by cone beam after extraction of third molars

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Anterior arch crowding: a possible predictor for mandibular third molar impaction

Cited by 2 publications

References 0 publications

The Evaluation of Further Complications after the Extraction of the Third Molar Germ: A Pilot Study in Paediatric Dentistry

The Evaluation of Further Complications after the Extraction of the Third Molar Germ: A Pilot Study in Paediatric Dentistry

Evaluación de las dimensiones del hueso alveolar distal del segundo molar a través de cone-beam post-extracción del tercer molar

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