What the case report describes
Shrestha and colleagues, in Case Reports in Dentistry, report two cases of traumatic dental injury to maxillary permanent central incisors in young children, injuries that can lead to pulp necrosis with or without apical periodontitis. The abstract is explicit about why this anatomy is hard: immature teeth with necrotic pulp have short, thin dentinal walls, open apices, and broad root canals, leaving them weak, fracture-prone, and at risk of becoming unrestorable and requiring extraction.
Apexification has traditionally been the treatment of choice. The report describes regenerative and revascularization procedures as the recent alternative and applies that approach in the two cases presented.
What two cases can and cannot show
A case report is the weakest formal category of clinical evidence: no comparator arm, no predefined endpoint visible in the abstract, and patient selection in the hands of the authors. What it can legitimately show is feasibility and natural history under treatment, that the procedure was performed in this difficult anatomy and the teeth were followed. What it cannot show is that regeneration beats apexification, or how often the outcome holds. Two patients is an existence proof, not an estimate.
Where this sits in the tracked programme
This is exactly the clinical niche where the pulp-dentin repair route has its human footing: immature permanent incisors with necrotic pulp. The programme’s T3 standing comes from the 2018 randomized trial of autologous pulp stem cell implantation in 26 evaluated patients with 24-month imaging, logged in our ledger. Revascularization-style procedures, which this report describes, are the cell-free cousin of that approach, relying on the patient’s own bleeding and resident cells rather than a graft. Case reports like this one add consistency to the picture; they do not raise the tier, and the trial evidence remains the load-bearing result.
Evidence level and tier mapping
On our method ladder this is T3 human data of the narrowest kind: real patients, real procedures, but uncontrolled and n of two. It belongs in the record as documentation that regenerative management of traumatized immature incisors continues to be practised and reported, not as evidence that shifts what the field can claim.
Where we differ from the coverage
Single-tooth success stories are a staple of “regrowing teeth” coverage. The honest frame: two children kept traumatized front teeth on a regenerative protocol, in a situation where the alternative was a non-vital tooth or extraction. That is a good outcome for two patients and a modest datum for everyone else.
Provenance: every claim above traces to the published abstract of the case report, per our method at /method/.