Primary study · included by 3 reviews

Kumar 2013

ProbableThe reviews cited this study without a PMID, DOI or NCT, so it is matched by first author and year. Two different studies by the same author in the same year could be merged here.

Included by

Fracture resistance of teeth restored with polyethylene fibers reinforced composite restorations: a systematic review and meta-analysis of in vitro studies.

Non-Cochrane · intervention · 2025 · cited as Kumar 2013 · Table 2; Results, forest plots (Figures 2-5)

Outcome this study informs	Pooled effect	Evidence	Certainty
Fracture resistance (N) Polyethylene fiber-reinforced composite resin restoration vs Non-fiber-reinforced composite resin restoration · After fracture strength test	SMD -0.82 [-1.16, -0.49]	28 studies · 1164 participants	GRADE not reported

Serum lipid alterations in oral squamous cell carcinoma and oral potentially malignant disorders: A systematic review and meta-analysis.

Non-Cochrane · aetiology · 2026 · cited as Kumar 2013 · Supplementary Table S3 reference list (included studies 37)

The review does not say which of its outcomes this study informs.

Dental caries experience in Indigenous children and adolescents: a systematic review and meta-analysis assessing worldwide disparities and time trends (1968-2024).

Non-Cochrane · other · 2026 · cited as Kumar et al. (2013) · Table 1

The review does not say which of its outcomes this study informs.

3 including reviews in total.