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Self-correction of the ectopic eruption of the maxillary first permanent molar and its predictive factors: A
Renata Travassos da Rosa Moreira Bastos1, Cibelle Cristina Oliveira Dos Santos1, Silvio Augusto Bellini-Pereira2
1Department of Orthodontics, Dental School, Federal University of Pará, Belém, Brazil.
Background:
Ectopic eruption of the maxillary first permanent molar is a local disturbance that affects the development of the occlusion.
Aim:
To evaluate the occurrence of self-correction of maxillary first permanent molar's ectopic eruption and its predictive factors.
Design:
Five electronic databases and part of the gray literature were investigated. The risk of bias was assessed using the Newcastle-Ottawa scale and the certainty of evidence using the GRADE tool.
Results:
Four studies were selected: Three had a low risk of bias, and one, moderate. Evidence with a moderate level of certainty was generated, indicating a possibility of 47%-78% of spontaneous correction up to 7 years of age. Supporting the prognosis, whether reversible or irreversible, there was a positive correlation between the severity of the atypical distal resorption of the second primary molar, a higher magnitude of impaction, a larger eruption angle, and a bilateral occurrence with the irreversibility of the cases.
Conclusion:
Spontaneous correction of the ectopic eruption of the maxillary first permanent molar is feasible and dependent on the severity of predictive factors. Early intervention is mandatory in irreversible cases.
