A Dynamic Navigation-Assisted Transcrestal Sinus Floor Elevation in Severely Atrophic Maxillae: A Descriptive Case Series.

Xingru Tao, Huiqing Jiang, Zhifan Sun, Chunfeng Xu, Dedong Yu

Abstract read

In one paragraph

Article in Oral and maxillofacial surgery, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it

0cells of the map it votes in

0citing papers in PubMed

–field-weighted citation impact

1 · What the graph read from it

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Xingru Tao *Department of Second Dental Center, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, National Centre for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai, China.

Huiqing Jiang *Private Practice, Quzhou, Zhejiang, China.

Zhifan SunDepartment of Second Dental Center, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, National Centre for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai, China.

Chunfeng XuDepartment of Second Dental Center, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, National Centre for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai, China. c.xu@acta.nl.

Dedong YuDepartment of Second Dental Center, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, National Centre for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai, China. yudedong@sjtu.edu.cn.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTranscrestal sinus floor elevation (tSFE) and lateral window sinus floor elevation (lSFE) are established techniques for implant placement in the atrophic posterior maxilla. While lSFE is traditionally indicated for residual bone height (RBH) < 5 mm, tSFE offers the advantage of reduced surgical trauma but is typically limited to cases with RBH > 5 mm due to the lack of direct visualization, which can compromise membrane integrity and implant positioning accuracy. Dynamic computer-aided implant surgery (dCAIS) has been introduced to address these limitations, but its effectiveness in tSFE, particularly in severely resorbed ridges, requires further investigation. PURPOSE: The purpose of this study was to evaluate the accuracy of a dynamic navigation system for implant placement when performing simultaneous transcrestal sinus floor elevation in patients with severely atrophic posterior maxillae (RBH < 5 mm). MATERIALS AND

methodsThis study evaluated 24 implants placed in 12 patients who underwent simultaneous tSFE and implant placement using a dynamic navigation system. All patients presented with an RBH of less than 5 mm in the posterior maxilla. Implant accuracy was assessed by comparing the planned and final implant positions. Descriptive analysis was performed to calculate the mean global platform deviation, global apex deviation, angular deviation, and platform depth deviation.

resultsThe descriptive analysis yielded the following mean accuracy values: global platform deviation (5.04 ± 2.06 mm), global apex deviation (4.71 ± 2.13 mm), angular deviation (2.24 ± 0.36°), and platform depth deviation (4.59 ± 2.16 mm). All 24 implants achieved successful osseointegration.

conclusionWithin the limitations of this study, the results suggest that tSFE with simultaneous implant placement using dynamic navigation is a feasible technique even in severely resorbed maxillae with RBH less than 5 mm. All implants osseointegrated successfully. However, the positional deviations observed were higher than those typically reported for dynamically navigated implant placement in less complex clinical scenarios, highlighting the significant technical challenges associated with combining tSFE and dCAIS in compromised bone.

Indexed as

Atrophic MaxillaDental Implantation, EndosseousSinus Floor AugmentationSurgery, Computer-AssistedAgedDental ImplantsFemaleHumansMaleMiddle AgedTreatment OutcomeDental ImplantsAccurate dental implant placementAtrophic maxillaDynamic navigationTranscrestal sinus floor elevation

Identifiers

PMID41845110

DOI10.1007/s10006-026-01548-2

What OpenQuestion holds

Textmetadata

Read underepoch 390

Registered trials

None linked

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.