scholarly journals Peri-implant tissue conditions following transcrestal and lateral sinus floor elevation: 3-year results of a bi-center, randomized trial

2022 ◽  
Author(s):  
Roberto Farina ◽  
Anna Simonelli ◽  
Giovanni Franceschetti ◽  
Luigi Minenna ◽  
Gian Pietro Schincaglia ◽  
...  
Keyword(s):  
Randomized Trial ◽  
Direct Contact ◽  
Lateral Sinus ◽  
Implant Survival ◽  
Implant Surface ◽  
Sinus Floor Elevation ◽  
Post Surgery ◽  
Posterior Maxilla ◽  
Sinus Floor

Abstract Objectives The present study was performed to comparatively evaluate the peri-implant bone stability and conditions of marginal tissues at 3 years following transcrestal and lateral sinus floor elevation (tSFE and lSFE, respectively). Materials and methods Patients included in a parallel-arm randomized trial comparatively evaluating tSFE and lSFE were recalled at 3 years post-surgery. Twenty-one and 24 patients in tSFE and lSFE groups, respectively, participated in the follow-up visit. Peri-implant bone support was evaluated as the proportion of the entire implant surface in direct contact with the radiopaque area (totCON%) on 3-year periapical radiographs. The conditions of the marginal peri-implant tissues at 3-year visit were classified as peri-implant health, peri-implant mucositis, or peri-implantitis. Results At 3 years, both groups showed an implant survival rate of 100%. Median totCON% was stable at 3 years, being 100% in both groups (p = 0.124). Peri-implant health and mucositis were diagnosed in 10 (47.6%) and 11 (52.4%) patients, respectively, in the tSFE group, and in 8 (33.3%) and 16 (66.7%) subjects, respectively, in the lSFE group (p = 0.502). Conclusions At 3 years following surgery, implants placed concomitantly with tSFE and lSFE fully maintain peri-implant bone support. Peri-implant mucositis was the most prevalent condition, with a similar prevalence between groups. Clinical relevance. Based on 3-year data on peri-implant bone support and prevalence of peri-implant diseases, the study suggests that tSFE and lSFE represent two equally valid options for the rehabilitation of the posterior maxilla. ClinicalTrials.gov ID: NCT02415946.

Axial Triangle of the Maxillary Sinus, and its Surgical Implication With the Position of Maxillary Sinus Septa During Sinus Floor Elevation: A CBCT Analysis

2020 ◽  
Vol 46 (4) ◽  
pp. 415-422
Author(s):  
Junho Jung ◽  
Jung Soo Park ◽  
Seoung-Jin Hong ◽  
Gyu-Tae Kim ◽  
Yong-Dae Kwon
Keyword(s):  
Maxillary Sinus ◽  
Surgical Techniques ◽  
Lateral Sinus ◽  
Sinus Floor Elevation ◽  
Second Molar ◽  
Sinus Wall ◽  
Posterior Maxilla ◽  
Significant Difference ◽  
Sinus Floor ◽  
Molar Region

The aim of this study was to measure the convexity of the lateral wall of the maxillary (Mx) sinus and identify the locational distribution of antral septa in relation to the zygomaticomaxillary buttress (ZMB), in order to suggest another anatomical consideration and surgical modification of sinus floor elevation procedures. This study was designed as a cross-sectional study, and a total of 134 patients and 161 sinuses containing edentulous alveolar ridges were analyzed. The angle between the anterior and lateral walls of the Mx sinus (lateral sinus angle [LSA]), and the angle between the midpalatal line and the anterior sinus wall (anterior sinus angle [ASA]) were measured. Mean LSAs and ASAs were 105.9° ± 9.86° and 58.4° ± 6.43°, respectively. No significant difference between left and right sides was found (LSA, P = .420; right = 105.5° ± 9.27°; left = 105.5° ± 9.27° and ASA, P = .564; right = 57.9° ± 6.80°; left = 58.8° ± 6.02°). The prevalence of septa was 37.3%, and it was most frequently noted in the second molar region (32.8%), followed by the first molar (20.9%), retromolar (16.4%), and second premolar regions (14.9%). Septa were most frequently located posterior to the ZMB (49.2%), while ZMB was mostly located in the first molar region (66.4%). Narrow LSAs may complicate the surgical approach to the posterior maxilla, especially when sinus elevation should be used in the second molar region. Considering the occasional presence of antral septa, membrane elevation may be complicated when a septum is encountered during the procedure. These results suggest that 3-dimensional examination of the convexity of the Mx sinus should be performed preoperatively to choose proper surgical techniques and minimize surgical complications.

scholarly journals Short implants (≤6 mm) versus longer implants with sinus floor elevation in atrophic posterior maxilla: a systematic review and meta-analysis

BMJ Open ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. e029826 ◽  
Author(s):  
Qi Yan ◽  
Xinyu Wu ◽  
Meiying Su ◽  
Fang Hua ◽  
Bin Shi
Keyword(s):  
Systematic Review ◽  
Survival Rate ◽  
Meta Analysis ◽  
Sinus Floor Elevation ◽  
Moderate Quality ◽  
Short Implants ◽  
Posterior Maxilla ◽  
Sinus Floor ◽  
Quality Evidence

ObjectivesTo compare the use of short implants (≤6 mm) in atrophic posterior maxilla versus longer implants (≥10 mm) with sinus floor elevation.DesignA systematic review and meta-analysis based on randomised controlled trials (RCTs).Data sourcesElectronic searches were conducted in PubMed, Embase and the Cochrane CENTRAL. Retrospective and prospective hand searches were also performed.Eligibility criteriaRCTs comparing short implants (≤6 mm) and longer implants (≥10 mm) with sinus floor elevation were included. Outcome measures included implant survival (primary outcome), marginal bone loss (MBL), complications and patient satisfaction.Data extraction and synthesisRisks of bias in and across studies were evaluated. Meta-analysis, subgroup analysis and sensitivity analysis were undertaken. Quality of evidence was assessed according to Grading of Recommendations Assessment, Development and Evaluation.ResultsA total of seven RCTs involving 310 participants were included. No significant difference in survival rate was found for 1–3 years follow-up (RR 1.01, 95% CI 0.97 to 1.04, p=0.74, I²=0%, moderate-quality evidence) or for 3 years or longer follow-up (RR 1.00, 95% CI 0.97 to 1.04, p=0.79, I²=0%, moderate-quality evidence). However, short implants (≤6 mm) showed significantly less MBL in 1–3 years follow-up (MD=−0.13 mm, 95% CI −0.21 to 0.05; p=0.001, I²=87%, low-quality evidence) and in 3 years or longer follow-up (MD=−0.25 mm, 95% CI −0.40 to 0.10; p=0.001, I²=0%, moderate-quality evidence). In addition, short implant (≤6 mm) resulted in fewer postsurgery reaction (RR 0.11, 95% CI 0.14 to 0.31, p<0.001, I²=40%, moderate-quality evidence) and sinus perforation or infection (RR 0.11, 95% CI 0.02 to 0.63, p=0.01, I²=0%, moderate-quality evidence).ConclusionsFor atrophic posterior maxilla, short implants (≤6 mm) are a promising alternative to sinus floor elevation, with comparable survival rate, less MBL and postsurgery reactions. Additional high-quality studies are needed to evaluate the long-term effectiveness of short implants (≤6 mm).Trial registeration numberThe protocol has been registered at PROSPERO (CRD42018103531).

scholarly journals Implant Stability of Biological Hydroxyapatites Used in Dentistry

2017 ◽  
Author(s):  
María Piedad Ramírez Fernández ◽  
Sergio Alexander Gehrke ◽  
Patricia Mazón ◽  
Jose Luis Calvo-Guirado ◽  
Piedad N. De Aza
Keyword(s):  
Chemical Properties ◽  
Implant Stability ◽  
Bone Substitute Material ◽  
Sinus Augmentation ◽  
Sinus Floor Elevation ◽  
Physico Chemical ◽  
Posterior Maxilla ◽  
Sinus Lifting ◽  
Sinus Floor

The aim of the present study was to monitor implant stability after sinus floor elevation with two biomaterials during the first 6 months of healing by a resonance frequency analysis (RFA), and how physico-chemical properties affect the implant stability quotient (ISQ) at the placement and healing sites. Bilateral maxillary sinus augmentation was performed in 10 patients in a split-mouth design using a bobine HA (BBM) as a control and porcine HA (PBM). Six months after sinus lifting, 60 implants were placed in the posterior maxilla. The ISQ was recorded on the day of surgery from RFA at T1 (baseline), T2 (3 months), and T3 (6 months). Statistically significant differences were found in the ISQ values during the evaluation period. The ISQ (baseline) was 63.8&plusmn;2.97 for BBM and 62.6&plusmn;2.11 for PBM. The ISQ (T2) was ~ 73.5&plusmn;4.21 and 67&plusmn;4.99, respectively. The ISQ (T3) was ~ 74.65&plusmn;2.93 and 72.9&plusmn;2.63, respectively. All the used HAs provide osseointegration and statistical increases in the ISQ at baseline, T2 and T3 (follow-up), respectively. The BBM, sintered at high temperature with high crystallinity and low porosity, presented higher stability, which demonstrates that variations in the physico-chemical properties of a bone substitute material clearly influence implant stability.

scholarly journals Morbidity following transcrestal and lateral sinus floor elevation: A randomized trial

2018 ◽  
Vol 45 (9) ◽  
pp. 1128-1139 ◽  
Author(s):  
Roberto Farina ◽  
Giovanni Franceschetti ◽  
Domenico Travaglini ◽  
Ugo Consolo ◽  
Luigi Minenna ◽  
...  
Keyword(s):  
Randomized Trial ◽  
Lateral Sinus ◽  
Sinus Floor Elevation ◽  
Sinus Floor

scholarly journals Paradigm Shift in the Management of the Atrophic Posterior Maxilla

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Rabah Nedir ◽  
Nathalie Nurdin ◽  
Paul Khoury ◽  
Marc El Hage ◽  
Semaan Abi Najm ◽  
...  
Keyword(s):  
Lateral Sinus ◽  
Efficient Treatment ◽  
Sinus Floor Elevation ◽  
Implant Placement ◽  
Single Crown ◽  
Posterior Maxilla ◽  
Atrophic Maxilla ◽  
Sinus Floor ◽  
Osteotome Sinus Floor Elevation ◽  
Bone Height

When the posterior maxilla is atrophic, the reference standard of care would be to perform sinus augmentation with an autologous bone graft through the lateral approach and delayed implant placement. However, placement of short implants with the osteotome sinus floor elevation technique and without graft can be proposed for an efficient treatment of clinical cases with a maxillary residual bone height of 4 to 8 mm. The use of grafting material is recommended only when the residual bone height is ≤4 mm. Indications of the lateral sinus floor elevation are limited to cases with a residual bone height ≤ 2 mm and fused corticals, uncompleted healing of the edentulous site, and absence of flat cortical bone crest or when the patient wishes to wear a removable prosthesis during the healing period. The presented case report illustrates osteotome sinus floor elevation with and without grafting and simultaneous implant placement in extreme conditions: atrophic maxilla, short implant placement, reduced healing time, and single crown rehabilitation. After 6 years, all placed implants were functional with an endosinus bone gain.

scholarly journals Single-Crown, Short and Ultra-Short Implants, in Association with Simultaneous Internal Sinus Lift in the Atrophic Posterior Maxilla: A Three-Year Retrospective Study

Materials ◽  
2020 ◽  
Vol 13 (9) ◽  
pp. 2208 ◽  
Author(s):  
Giorgio Lombardo ◽  
Mauro Marincola ◽  
Annarita Signoriello ◽  
Giovanni Corrocher ◽  
Pier Francesco Nocini
Keyword(s):  
Contact Point ◽  
Invasive Technique ◽  
Sinus Lift ◽  
Sinus Floor Elevation ◽  
Single Crown ◽  
Posterior Maxilla ◽  
Sinus Floor ◽  
Osteotome Sinus Floor Elevation ◽  
Bone Height

As the atrophic posterior maxilla often presents serious limitations for dental implant procedures, a minimally invasive technique was proposed. The study aimed to retrospectively evaluate the outcomes of short and ultra-short locking-taper implants, placed in combination with a modified osteotome sinus floor elevation procedure (internal sinus lift technique) in the posterior maxilla. A total of 31 patients received 51 locking-taper implants. Clinical and radiographic examinations were performed before treatment, at loading time, and after three years. Seven implants of 8.0 mm, 23 implants of 6.0 mm, and 21 implants 5.0 mm in length were rehabilitated with single-crown restorations. Implant survival at three-year follow-up was 96.08%. Pre-operative residual crestal bone height of 5.2 (1.41) (median (interquartile range)) mm increased to 7.59 (1.97) mm at the 36-month follow-up, with an average intra-sinus bone height gain of 3.17 ± 1.13 (mean ± standard deviation) mm. Mean peri-implant crestal bone loss was 0.29 (0.46) mm and mean first bone-to-implant contact point shifted apically to 0.12 (0.34) mm. It can be suggested with confidence that implants used in the study, placed in conjunction with an internal sinus floor elevation technique, can be restored with single crowns as a predictable treatment for the edentulous regions of the posterior maxilla.

Radiographic outcomes of transcrestal and lateral sinus floor elevation: One‐year results of a bi‐center, parallel‐arm randomized trial

2019 ◽  
Vol 30 (9) ◽  
pp. 910-919 ◽  
Author(s):  
Roberto Farina ◽  
Giovanni Franceschetti ◽  
Domenico Travaglini ◽  
Ugo Consolo ◽  
Luigi Minenna ◽  
...  
Keyword(s):  
Randomized Trial ◽  
Lateral Sinus ◽  
Sinus Floor Elevation ◽  
Radiographic Outcomes ◽  
Sinus Floor ◽  
One Year

A combined lateral-crestal approach of sinus floor elevation: A report on three cases

2020 ◽  
Author(s):  
Xin Zhang ◽  
Yuting Zhang ◽  
Jian Wang ◽  
Qianbing Wan ◽  
Lei Li
Keyword(s):  
Clinical Study ◽  
Conservative Treatment ◽  
Lateral Approach ◽  
Clinical Report ◽  
Sinus Lift ◽  
Sinus Floor Elevation ◽  
Long Term Follow Up ◽  
Sinus Floor

This clinical report describes a combined lateral-crestal approach to elevate the sinus floor when placing implants on a wide maxillary posterior ridge. The buccally enlarged osteotomy broadens vision of practitioners and facilitates access of instruments in the sinus. Compared to the traditional lateral approach of sinus lift, the proposed technique may offer a more conservative treatment modality. And a clinical study with sufficient subjects and long term follow up is needed to validate the potential and limitations of the proposed technique.

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