Peer-reviewed article
Impacted Permanent Teeth in the Mixed Dentition: Pediatric Diagnosis, Surgical Exposure, and Orthodontic Traction
Rama Almutlaq, Majid A AlHarthi, Faisal Albahkali, Abdullah Albadia, Wasan Koaban et al. ·
Summary
Written by AI, not yet AICS's view · claude-sonnet-5-5This narrative review looks at how permanent teeth that fail to come through (impacted teeth) are diagnosed and treated in children with mixed dentition. It covers early diagnosis, interceptive treatment, surgical exposure, orthodontic traction, treatment failure and later outcomes. The authors conclude that no single exposure technique is shown to be best. They say surgery and orthodontic mechanics should be planned together and follow the child's anatomy. The stated aim is a healthy gum and supporting tissue, a workable bite and good long-term restorative options for the growing child, not saving the impacted tooth at any cost.
Key points
- Diagnosis should combine eruption symmetry and progression, space conditions, tooth-specific warning signs and clinically directed imaging.
- Removing barriers and providing space may allow spontaneous eruption in favorable immature teeth.
- Extracting the primary canine may help selected palatal displacements but does not predict the outcome in every case.
- The evidence does not establish a universally superior exposure technique.
- Even when alignment is achieved, gum, pulp, root, esthetic and stability outcomes still matter, as do repeat exposure, ankylosis and injury to adjacent teeth.
Limitations
The review is narrative, and the literature it draws on is mostly retrospective, focused on maxillary canines, and varied in definitions, protocols and follow-up. The abstract names no country or specific population, so it cannot tell us about children in any particular setting.
Abstract
Permanent-tooth impaction during the mixed dentition is time-sensitive because eruption potential, root formation, arch space, and relationships with adjacent structures change during growth.This comprehensive narrative review evaluated evidence concerning pediatric diagnosis, interception, surgical exposure, orthodontic traction, treatment failure, and post-treatment outcomes.PubMed/MEDLINE, Embase, Scopus, and Web of Science were searched from inception through August 2026, with supplementary targeted searching.Diagnosis should integrate eruption symmetry and progression, space conditions, tooth-specific warning signs, and clinically directed imaging.Barrier removal and space provision may permit spontaneous eruption in favorable immature teeth, whereas primary-canine extraction may benefit selected palatal displacements but is not uniformly predictive.When definitive treatment is required, surgical access and orthodontic mechanics should be designed together.Evidence does not establish a universally superior exposure technique; tissue management, attachment placement, traction direction, and anchorage should follow anatomy and the intended eruption pathway.A defined path, usable space, stable anchorage, and staged movement away from vulnerable structures are more defensible than prescribing a named appliance or universal force threshold.Although alignment is often achievable in selected cases, periodontal, pulpal, root, esthetic, and stability outcomes remain relevant, together with repeat exposure, ankylosis, and adjacent-tooth injury.The literature is predominantly retrospective, concentrated on maxillary canines, and heterogeneous in definitions, protocols, and follow-up.The clinically responsible objective is not preservation of the impacted tooth at any cost, but selection of the strategy most likely to provide the growing child with a healthy periodontium, maintainable occlusion, and acceptable long-term restorative options.