Facial alveolar bone alterations and gray value changes based on cone beam computed tomography around maxillary anterior implants: A clinical retrospective study of 1–3 years

Zhou, Yi; Gao, Jiayu; Sheng, Min; Qi, Wei; Jin, Jiali; He, Fuming

doi:10.1111/clr.13583

Cited by 11 publications

(6 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Further, consistent with previous studies, we found that a higher number of graft contact walls effectively reduces the risk of implant apical non-coverage (Lombardi et al, 2017;Zhou et al, 2020).…”

Section: Discussionsupporting

confidence: 92%

See 1 more Smart Citation

A nomogram prediction of implant apical non‐coverage on bone‐added transcrestal sinus floor elevation: A retrospective cohort study

Gao,

Yang,

Yin

et al. 2023

Clinical Oral Implants Res

Self Cite

View full text Add to dashboard Cite

ObjectivesTo identify the risk indicators and develop and validate a nomogram prediction model of implant apical non‐coverage by comprehensively analyzing clinical and radiographic factors in bone‐added transcrestal sinus floor elevation (TSFE).Material and MethodsA total of 260 implants in 195 patients receiving bone‐added TSFE were included in the study. The population was divided into a development (180 implants) and a validation (80 implants) cohort. According to 6 months post‐surgery radiographic images, implants were categorized as “apical non‐coverage” or “apical covered.” The association of risk factors including clinical and radiographic parameters with implant apical non‐coverage was assessed using regression analyses. A nomogram prediction model was developed, and its validation and discriminatory ability were analyzed.ResultsThe nomogram predicting bone‐added TSFE's simultaneously placed implant's apex non‐coverage after 6 months. This study revealed that sinus angle, endo‐sinus bone gain, implant protrusion length, graft contact walls, and distal angle were predictors of implant apical non‐coverage. The generated nomogram showed a strong predictive capability (area under the curve [AUC] = 0.845), confirmed by internal validation using 10‐fold cross‐validation (Median AUC of 0.870) and temporal validation (AUC = 0.854). The calibration curve and decision curve analysis demonstrated good performance and high net benefit of the nomogram, respectively.ConclusionsThe clinical implementation of the present nomogram is suitable for predicting the apex non‐coverage of implants placed simultaneously with bone‐added TSFE after 6 months.

show abstract

Section: Discussionsupporting

confidence: 92%

“…Further, consistent with previous studies, we found that a higher number of graft contact walls effectively reduces the risk of implant apical non‐coverage (Lombardi et al., 2017; Zhou et al., 2020). Moreover, our findings highlight that a larger distal angle inversely affects the risk of implant apical non‐coverage.…”

Section: Discussionsupporting

confidence: 92%

A nomogram prediction of implant apical non‐coverage on bone‐added transcrestal sinus floor elevation: A retrospective cohort study

Gao,

Yang,

Yin

et al. 2023

Clinical Oral Implants Res

Self Cite

View full text Add to dashboard Cite

show abstract

“…The assessment of optical density in CBCT (cone beam-computed tomography) is not easy due to the impossibility of using the Hounsfield scale. The assessment of alveolar ridge dimensions [ 19 ], on the other hand, does not mention the presence of living bone [ 20 ]. Furthermore, the presence of living hard tissue allows for long-term clinical success.…”

Section: Discussionmentioning

confidence: 99%

New Oral Surgery Materials for Bone Reconstruction—A Comparison of Five Bone Substitute Materials for Dentoalveolar Augmentation

Kozakiewicz

Wach

2020

Materials

View full text Add to dashboard Cite

This article presents a comparison of bone replacement materials in terms of their ability to produce living bone image at the place of their implantation. Five bone replacement materials are compared (Osteovit—porous collagen, Cerasorb Foam—collagen scaffolding of synthetic β tricalcium phosphate, Osbone—synthetic hydroxyapatite, Endobone—deproteinized bovine-derived cancellous bone hydroxyapatite, and Cerasorb—synthetic β tricalcium phosphate). Intraoral radiographs are taken immediately after implantation and 12 months later. The texture analysis was performed to assess (texture index, TI) the level of structure chaos (entropy) in relation to the presence of longitudinal elements visible in radiographs (run length emphasis moment). The reference ratio of the chaotic trabecular pattern (Entropy) to the number of longitudinal structures, i.e., trabeculae (LngREmph), is 176:100 (i.e., 1.76 ± 0.28). Radiological homogeneity immediately after the implantation procedure is a result of the similar shape of its particles (Osbone, Endobone and Cerasorb) or radiolucency (Osteovit, Cerasorb Foam). The particles visible in radiographs were similar in the LngREmph parameters applied to the reference bone, but not in the co-occurrence matrix features. The TI for Osteovit during a 12-month follow-up period changed from 1.55 ± 0.26 to 1.48 ± 0.26 (p > 0.05), for Cerasorb Foam from 1.82 ± 0.27 to 1.63 ± 0.24 (p < 0.05), for Osbone from 1.97 ± 0.31 to 1.74 ± 0.30 (p < 0.01), and for Endobone from 1.86 ± 0.25 to 1.84 ± 0.25 (p > 0.05), The observed structure in the radiological image of bone substitute materials containing calcium phosphates obtains the characteristics of a living bone image after twelve months.

show abstract

“…Secondly, the cross-sectional images were rotated to align T1 and T2. Thirdly, the positions of the adjacent teeth and anatomical structures were referenced to superimpose the T0 image (Zhou et al, 2020).…”

Section: Radiographic Measurementmentioning

confidence: 99%

Cushioned grind‐out technique transcrestal sinus floor elevation for simultaneous implantation in severe atrophic maxilla: A retrospective study with up to 7 years of follow‐up

Gao

Yin

Liu

et al. 2023

Clinical Oral Implants Res

Self Cite

View full text Add to dashboard Cite

Objectives This study aimed to evaluate the effects of the cushioned grind‐out technique transcrestal sinus floor elevation for simultaneous implant placement with ≤4 mm of residual bone height (RBH). Materials and Methods This was a retrospective propensity score matching (PSM) study. Five PSM analyses included the confounding variables of Schneiderian membrane perforation, early and late implant failure, and peri‐implant apical and marginal bone resorption. After PSM, we compared the difference in five aspects between the RBH ≤ 4 and >4 mm groups. Results A total of 214 patients with 306 implants were included in this study. After PSM, the generalized linear mixed model (GLMM) indicated that RBH ≤ 4 mm had no significantly higher risk of Schneiderian membrane perforation and early and late implant failure (p = .897, p = .140, p = .991, respectively). The implant cumulative 7‐year survival rate of the RBH ≤ 4 and >4 mm groups was 95.5% and 93.9%, respectively (log‐rank test: p = .900). Within at least 40 cases per group after PSM, two multivariate GLMMs indicated that RBH ≤ 4 mm could not be identified as the promotive factor of bone resorption of either endo‐sinus bone gain or crest bone level (RBH × time interaction p = .850, p = .698, respectively). Conclusions Within the limitations, 3 months to 7 years of post‐prosthetic restoration review data indicated an acceptable mid‐term survival and success rate of applying the cushioned grind‐out technique in RBH ≤ 4 mm cases.

show abstract

Facial alveolar bone alterations and gray value changes based on cone beam computed tomography around maxillary anterior implants: A clinical retrospective study of 1–3 years

Cited by 11 publications

References 46 publications

A nomogram prediction of implant apical non‐coverage on bone‐added transcrestal sinus floor elevation: A retrospective cohort study

A nomogram prediction of implant apical non‐coverage on bone‐added transcrestal sinus floor elevation: A retrospective cohort study

New Oral Surgery Materials for Bone Reconstruction—A Comparison of Five Bone Substitute Materials for Dentoalveolar Augmentation

Cushioned grind‐out technique transcrestal sinus floor elevation for simultaneous implantation in severe atrophic maxilla: A retrospective study with up to 7 years of follow‐up

Contact Info

Product

Resources

About