Management of an Intruded Tooth and Adjacent Tooth Showing External Resorption as a Late Complication of Dental Injury: Three-Year Follow-Up

Abstract

Treatment and prognosis of intrusive luxation can vary depending on the age of the patient, type of dentition, stage of root development, and time and severity of the trauma. Some studies have demonstrated that intrusions of up to 3.0 mm have an excellent prognosis, whereas teeth with severe intrusion or teeth that are intruded more than 6.0 mm present an unfavorable prognosis because of the occurrence of inflammatory resorption and pulp necrosis. The aim of this case report is to present an 11-year-old male patient with complete intrusion of the permanent maxillary left lateral incisor, associated with the adjacent central tooth presenting external resorption, treated by immediate surgical repositioning and root canal treatment with a favorable prognosis. After long-term (3-year) clinical and radiographic follow-up, the teeth appeared normal and the patient was pleased with the outcome.

Three‐dimensional finite element stress analysis of teeth adjacent to a traumatized incisor

“…However, pulp necrosis and root resorption have been observed in adjacent teeth that were not directly impacted . It has been reported that even when the pulp response after trauma was positive, complications could develop after several weeks or months . These complications are frequently overlooked because they are poorly understood.…”

Tooth root resorption: A review

“…are described in the literature. 7 – 10 , 19 , 91 – 93 Risk factors include patient's gender, 9 age, 99 ethnicity, 84 , 85 root form, 83 , 106 occlusal peculiarities, 83 , 88 , 89 genetic predisposition, 14 – 16 , 83 , 86 , 87 underlying diseases. 101 , 103 , 105 The study of the above literature showed that there is no clear definition of etiological risk factors, all these factors either contribute or provoke the development of resorption.…”

“…Mechanical factors occurring in orthodontic treatment (detailed description in the section of Orthodontic Treatment Mechanics Factors) can be a precondition to the development of root resorption, but these can be controlled and regulated to prevent complications. 83 , 90 Exogen factors include trauma, pulp infection, orthodontic treatment, tooth bleaching, etc.. 7 – 10 , 19 , 91 – 93 Thus, etiological and risk factors which can initiate or stimulate the development of resorption can be summed up as presented in Table 5 .…”

“… 97 Facial traumas mainly involve anterior teeth with further development of complications. 91 Therefore, radiographic changes and pulp vitality should be assessed over time. There is evidence that in 2% of cases, resorption develops after the tooth root dislocation.…”

“…Anachoresis is also mentioned as a causative factor. 7 – 9 , 19 , 91 Orthodontic treatment is also considered to be an etiologic factor of resorption. 10 , 92 …”