PDL® laser-treated surface
Surface Technology & Research
PDL® is a laser-based titanium surface treatment used in BiomateSWISS implant systems. This page presents surface characteristics and findings reported in laboratory, preclinical and clinical research.
- PDL® treatment is designed to create defined micro- and nanoscale surface features, including microchannels.
- The research presented below examines material characteristics, cell responses, angiogenesis-related observations, marginal bone levels and biofilm formation.
- Each finding should be interpreted within the design, comparator, sample and limitations of the individual study.
The summaries below describe research observations and do not constitute a guarantee of clinical performance or individual treatment outcomes.
Quick Guide
Surface Characterisation
Microscopy, topography, oxide-layer characteristics and surface composition.
Laboratory & Preclinical Research
Cell responses, angiogenesis-related observations and biofilm formation under defined research conditions.
Clinical Research
Marginal bone-level observations under the protocols used in individual studies.
1. PDL® Laser Surface Technology
Technology overviewThe PDL® process applies laser energy to the titanium surface to form a defined topography. Product microscopy illustrates micro-scale features and microchannels produced using the specified treatment parameters.
Surface images and measurements can characterise the treated titanium. They should not, on their own, be interpreted as proof of a particular clinical outcome.
2. Surface Characterisation
Material evaluationTechnical evaluations have examined oxide-layer thickness, topography, elemental composition and surface changes following insertion. BiomateSWISS materials report an oxide-layer measurement of approximately 110 nm at the ridge area of the evaluated PDL® samples.
The measurements describe the samples and methods used in the evaluation. Oxide-layer thickness, topography or elemental composition should not be used alone to infer faster healing or superior clinical performance.
Source context: Material characterisation presented by National Chung Hsing University in BiomateSWISS technical materials. Surface-alteration images relate to a preliminary insertion study from Mahidol University.
3. Cell Response & Biocompatibility
In-vitro researchLaboratory studies have evaluated cell morphology, attachment, proliferation, osteogenic markers and extracellular mineralisation on laser-treated titanium surfaces.
Responses were observed in cell-based laboratory models under specified experimental conditions. In-vitro findings cannot be assumed to predict healing time or clinical outcomes in patients.
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Selected publications: Khoo et al., 2020 and Chen et al., 2024.
4. Angiogenesis-Related Observations
Preclinical evidenceResearch materials from National Defence University present microscopy observations relating to cell attachment and vascular structures around evaluated laser-treated surfaces.
Microscopy observations should be interpreted with the complete study design, sample information and analytical methods. They do not independently demonstrate improved clinical healing or long-term bone stability.
5. Marginal Bone-Level Observations
Clinical researchA split-mouth study presented in BiomateSWISS research materials compared radiographic marginal bone-level changes around laser-treated and SLA-treated implants over a six-month observation period.
A between-group difference was reported under the study protocol. The result is specific to the study population, implant systems, measurement method and follow-up period and should not be generalised as a guarantee of reduced bone loss.
Source context: Split-mouth clinical research attributed to Cairo University in BiomateSWISS research materials.
6. Biofilm Formation
In-vitro & in-situ researchA peer-reviewed study evaluated oral biofilm formation on a laser-microtextured titanium surface and selected comparator surfaces using in-vitro and in-situ models.
Differences in biofilm formation were reported under the experimental conditions used. These findings do not demonstrate that an implant surface prevents peri-implantitis or bacterial infection in clinical use.
Publication: Ionescu et al., 2018 – Laser microtextured titanium implant surfaces reduce in-vitro and in-situ oral biofilm formation.