Evidence map›Paper›PMID 42696071›Full record

ArticleClinical oral investigations2026

Apical bone coverage and implant survival after lateral sinus floor elevation: a retrospective study.

Jiaying Zhao, Zhikang Wang, Bicong Gao, Ying Wang, Tingben Huang, Yani Chen, Kaichen Lai, Wenjin Cai, Guoli Yang

Abstract read
PubMed Publisher
In one paragraph

Article in Clinical oral investigations, 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

9 authors.

Jiaying Zhao *Stomatology Hospital, School of Stomatology, Zhejiang Provincial Clinical Research Center for Oral Diseases, Zhejiang Key Laboratory of Oral Biomedical, Zhejiang University School of Medicine, Hangzhou, 310000, China.
Zhikang Wang *Stomatology Hospital, School of Stomatology, Zhejiang Provincial Clinical Research Center for Oral Diseases, Zhejiang Key Laboratory of Oral Biomedical, Zhejiang University School of Medicine, Hangzhou, 310000, China.
Bicong GaoStomatology Hospital, School of Stomatology, Zhejiang Provincial Clinical Research Center for Oral Diseases, Zhejiang Key Laboratory of Oral Biomedical, Zhejiang University School of Medicine, Hangzhou, 310000, China.
Ying WangStomatology Hospital, School of Stomatology, Zhejiang Provincial Clinical Research Center for Oral Diseases, Zhejiang Key Laboratory of Oral Biomedical, Zhejiang University School of Medicine, Hangzhou, 310000, China.
Tingben HuangStomatology Hospital, School of Stomatology, Zhejiang Provincial Clinical Research Center for Oral Diseases, Zhejiang Key Laboratory of Oral Biomedical, Zhejiang University School of Medicine, Hangzhou, 310000, China.
Yani ChenStomatology Hospital, School of Stomatology, Zhejiang Provincial Clinical Research Center for Oral Diseases, Zhejiang Key Laboratory of Oral Biomedical, Zhejiang University School of Medicine, Hangzhou, 310000, China.
Kaichen LaiStomatology Hospital, School of Stomatology, Zhejiang Provincial Clinical Research Center for Oral Diseases, Zhejiang Key Laboratory of Oral Biomedical, Zhejiang University School of Medicine, Hangzhou, 310000, China. laikaichen@zju.edu.cn.
Wenjin CaiStomatology Hospital, School of Stomatology, Zhejiang Provincial Clinical Research Center for Oral Diseases, Zhejiang Key Laboratory of Oral Biomedical, Zhejiang University School of Medicine, Hangzhou, 310000, China. Wenjincai@zju.edu.cn.
Guoli YangStomatology Hospital, School of Stomatology, Zhejiang Provincial Clinical Research Center for Oral Diseases, Zhejiang Key Laboratory of Oral Biomedical, Zhejiang University School of Medicine, Hangzhou, 310000, China. guo_li1214@zju.edu.cn.ORCID https://orcid.org/0000-0002-1780-8757

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesThis study evaluated the impact of apical bone height (ABH) on implant survival after lateral sinus floor elevation (LSFE) with simultaneous implantation, controlling for confounding factors.

methodsA retrospective cohort of 195 implants was analyzed. ABH was measured immediately postoperatively (T1), at 6 months (T2), and at ≥ 2 years (T3), and stratified as ≤ 2 mm or > 2 mm. Survival was assessed using Kaplan-Meier curves and multivariable Cox regression, adjusting for demographic, surgical, behavior, and anatomic variables.

resultsABH and endo-sinus bone gain significantly declined from T1 to T2 (p < 0.001) and continued to decrease at T3 (p < 0.001). Multivariable analysis identified ABH > 2 mm as a significant independent protective factor for implant survival at all timepoints (T1: HR = 0.100, p = 0.035; T2: HR = 0.039, p < 0.001; T3: HR = 0.040, p = 0.007). Conversely, the magnitude of ABH change did not significantly influence survival. Kaplan-Meier analysis showed markedly lower cumulative survival rates (CSRs) for ABH ≤ 2 mm (log-rank p < 0.001). At 40 months, CSRs were 20.0% at T1, 37.5% at T2, and 46.1% at T3. When ABH was excluded from the model, smoking emerged as an independent predictor (HR = 3.648, p = 0.023), while sex, age, and implant site were not significant.

conclusionsABH decreases significantly within 6 months after LSFE and continues to decline thereafter. Critically, ABH ≤ 2 mm is a consistent and powerful predictor of implant failure, underscoring its importance in treatment planning. CLINICAL SIGNIFICANCE: Maintaining ABH > 2 mm is essential for long-term implant stability, emphasizing early monitoring and bone preservation after LSFE.

Indexed as

Dental Implantation, EndosseousDental ImplantsSinus Floor AugmentationDental Restoration FailureFemaleHumansMaleMiddle AgedRetrospective StudiesTreatment OutcomeDental ImplantsApical bone heightClinical researchEndo-sinus bone gainImplant survivalLateral sinus floor elevation

Identifiers

PMID42696071

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.