ReviewInternational journal of implant dentistry2026
Effect of implant neck design on peri-implant tissue conditions: a narrative review.
Review in International journal of implant dentistry, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors.
Funding
Abstract
purposeThe neck design of dental implants, which is crucial for the long-term health of the surrounding periodontal tissue, affects both the marginal bone preservation and soft tissue integration. This narrative review investigates various approaches for implant neck design, including macroscopic contour profiles (straight, divergent, convergent, scalloped, sloped, and triangular), surface texture modifications (microthreaded, roughened, and machined collars), and platform switching.
methodsA narrative literature search was conducted in PubMed, Scopus, and Web of Science up to July 2025. Studies examining implant neck geometry, surface characteristics, or their mechanical and biological relevance were included. Evidence from finite element analyses, preclinical studies, clinical investigations, and systematic reviews or meta-analyses was qualitatively synthesized for comparing the implant neck designs.
resultsFinite-element analyses and clinical trials have indicated that divergent and convergent necks exhibit better biomechanics than traditional straight-neck designs. Sloped and triangular designs can adapt to the ridge shape, thus improving soft tissue appearance. Microthreaded and roughened collars may optimize stress distribution and promote osseointegration; however, certain concerns, such as the risk of bacterial colonization, exist. Platform switching has demonstrated consistent benefits in reducing crestal bone loss, particularly in the esthetic zones and immediate placement protocols. However, the overall evidence remains heterogeneous across studies.
conclusionsThis review highlights the need to shift from a design-centric to an indication-oriented strategy. Instead of relying solely on the manufacturer's claims, neck designs should be altered based on specific factors such as tissue morphology, esthetic considerations, hygiene accessibility, and load protocols.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.