ArticleBMC oral health2026
Accuracy of photogrammetric technique versus conventional impression technique for implant-supported fixed complete dentures.
Article in BMC oral health, 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
6 authors.
Funding
Abstract
backgroundPhotogrammetry technique may provide a promising approach compared to conventional techniques for multiple implants. However, the accuracy of photogrammetric technique for implant-supported fixed complete dentures in clinical scenarios remains unclear.
objectiveThis study aimed to evaluate the accuracy of photogrammetric technique in horizontal impressions for implant-supported fixed complete dentures compared to conventional impression technique in edentulous jaws.
methodsBetween March and December 2023, twenty edentulous arches (10 maxillary and 10 mandibular), each consisting of four to eight dental implants, were selected. For the photogrammetric technique, specialized scan bodies were placed on dental implants, followed by a digital scan using a photogrammetric camera. An intraoral scanner was then applied to obtain the information of soft tissue, which was subsequently aligned with photogrammetric data in the software using a best-fit algorithm. After one month, half of the participants were selected to repeat the procedure to assess the precision of photogrammetric technique. For conventional impressions, a two-step technique was employed. The initial impression was first completed using polyvinyl siloxane impression material to create a model. After pouring dental stone, several impression posts were attached to analogs, and a perforated custom tray was subsequently fabricated to facilitate the open-tray splinted final impressions. The final impressions, made with polyvinyl siloxane impression material, were subsequently poured with dental stone and scanned using a laboratory scanner. The deviations in distances and angles between photogrammetric technique and conventional impression were measured in the software. Distance deviations were recorded as the main outcome, while angular deviations were calculated as the secondary outcome. Deviations between photogrammetric technique versus conventional impression technique were compared using the Wilcoxon test. The significance level was set at 0.05.
resultsThe overall deviation in distance was 34.46 ± 24.65 mm for the maxilla and 49.80 ± 39.09 mm for the mandible. In terms of angular parameters, deviation was 0.36 ± 0.28 degrees for the maxilla and 0.44 ± 0.33 degrees for the mandible. The results of the Wilcoxon test indicated no significant differences in distance and angles between photogrammetric technique and conventional impression technique, demonstrating the acceptable trueness of the photogrammetric technique for implant-supported fixed complete dentures (P < 0.05). Additionally, no significant difference was found between two measurements using the photogrammetry technique over a one-month interval, indicating the promising precision of the technique (P < 0.05).
conclusionThe photogrammetric technique could serve as a promising alternative for implant-supported fixed complete dentures in edentulous patients, demonstrating acceptable trueness and precision in the clinical environment.
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.