ESPACIO DISPONIBLE PARA LA ERUPCIÓN DE TERCEROS MOLARES INFERIORES

• DOI: https://doi.org/10.22533/at.ed.2332415076

• Palavras-chave: Tercer molar, Panorámica, Erupción, Jóvenes, Radiografía

• Keywords: Third molar, Panoramic, Eruption, Young, X-ray

• Abstract: Introduction: The third molars are the last teeth to erupt, and in many cases the eruption space is not enough and therefore they remain retained. Objective: To determine the prevalence of eruption and retention of lower third molars in panoramic radiographs. Materials and Method: A total of 947 digital panoramic radiographs were analyzed using the Pell and Gregory criteria, and Winter's classification; Two trained and standardized examiners were in charge of data collection. Results: a total of 1782 molars were examined, 895 were right molars and 887 left molars; 37% (350 subjects) were male x-rays and 63% (597 subjects) for the female gender, the average age was 19.7 years with a Ds: 5.9 years. 69.3% of the molars studied did not present a good eruption position; being that only 30.7% (272) presented a vertical position. Conclusion: It can be concluded that the retention of the third molars is 69.3%, the most prevalent position of the third molars was the mesioangular with 52.2% (469 molars), 65.3% (584 molars) of the molars are in class II and 15% (134 molars) in class III, both positions delimit that they do not have space to erupt, only 19.8% (177 molars) of the molars. molars is in class I which would be the best eruption position. The available eruption space was X: 8.0mm while the mesiodistal width of the crown was X: 11.4 mm, so there is a space deficit of -3.4 mm for the eruption of these molars.