Traumatic dental injuries (TDIs) in early childhood often lead to complex complications for the developing permanent dentition. Among these injuries, primary tooth avulsion frequently causes ectopic positioning or impaction of the successor. However, a recent 10-year follow-up case report highlights the possibility of spontaneous eruption after avulsion, even when the permanent tooth appears severely displaced near the nasal floor.

The case involved a 5-year-old girl who suffered the avulsion of her primary maxillary left central incisor. When she reached age 8, her permanent successor had not yet emerged. Radiographic imaging showed the permanent incisor near the nasal floor. Notably, no obstructive etiology like a supernumerary tooth was present.

Benefits of Spontaneous Eruption After Avulsion

The clinical team faced a choice between immediate surgical intervention and a wait-and-see strategy. Because surgery carries risks of morbidity and damage to the tooth follicle, the clinicians chose a conservative path. They utilized space maintenance to keep the area open while monitoring the patient long-term. Remarkably, despite the initially unfavorable and high position, the tooth began to move.

Ultimately, the tooth erupted spontaneously without requiring any surgical exposure or orthodontic traction. At the 10-year follow-up, the patient showed excellent results. The tooth remained vital and asymptomatic. Furthermore, the final esthetic rehabilitation successfully restored the patient's smile, demonstrating that patience in treatment planning can yield high-quality outcomes.

Clinical Takeaways for Practitioners

This case underscores the importance of individualizing treatment. While many clinicians might rush to surgery for high impactions, this example proves that the body's eruptive force can sometimes overcome significant displacement. Therefore, if no physical obstruction exists, a period of observation may be the safest and most effective initial approach.

Frequently Asked Questions

What are the common sequelae of primary tooth avulsion?

Primary tooth trauma can lead to enamel hypoplasia, crown dilaceration, or delayed eruption in permanent successors due to the close proximity of the tooth germs.

When should a clinician consider a conservative approach for an unerupted tooth?

A wait-and-see approach is often appropriate when there is no obstructive pathology, such as a cyst or supernumerary tooth, and the patient is still within an active growth phase.

How long should one monitor a tooth before opting for surgery?

Clinicians typically monitor for 6 to 12 months for signs of movement. However, as this case shows, spontaneous movement can occur even after longer periods if the clinician maintains the necessary space.

Disclaimer: This content is for informational and educational purposes only and does not constitute medical advice. It is not intended to be a substitute for professional clinical judgment, diagnosis, or treatment. Always seek the advice of a qualified healthcare provider with any questions regarding a medical condition. Refer to the latest local and national guidelines for clinical practice.

References

Akyildiz BM et al. Spontaneous eruption of a maxillary central incisor near the nasal floor following primary incisor avulsion: a 10-year follow-up case report. Quintessence Int. 2026 May 08. doi: 10.3290/j.qi.b7003248. PMID: 42100842.

Cavalcanti AFM, et al. Impact of Traumatic Injuries to Primary Teeth on the Development of Permanent Dentition: Findings From a Retrospective Cohort. PMC. 2023.

Royal College of Surgeons of England. Management of unerupted maxillary incisors. Faculty of Dental Surgery. 2021.