Repositioning of the bone window in lateral sinus floor elevation with simultaneous implant placement: A retrospective radiographic study

Wang, Zhikang; Zhang, Jing; Ren, Lingfei; Yang, Guoli

doi:10.1111/clr.13963

Cited by 5 publications

(3 citation statements)

References 55 publications

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“…Implant survival and ossification of sinus bone grafts may be enhanced when the lateral access opening sites are covered with barrier membranes or repositioned using a bony window [34,35]. However, controversial opinions suggest that there are no significant differences in implant treatment outcomes after MSFA, with or without coverage of the lateral windows, although a higher percentage of newly formed bone was detected in the coverage group [36].…”

Section: Discussionmentioning

confidence: 99%

A Clinical Approach for the Removal of a Large Antral Pseudocyst with Simultaneous Maxillary Sinus Augmentation: A Case Series

Park,

Shin,

Shin

et al. 2024

Medicina

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For a large benign lesion within the maxillary sinus, such as an antral pseudocyst, maxillary sinus floor augmentation is more commonly performed using a two-stage approach. This involves first removing the lesion, and then, re-entry following several months of healing. In this case series, we described the “one-bony-window” approach, which is a technical surgical modification of the previous one-stage approach, for simultaneous cyst removal and maxillary sinus floor augmentation. Four patients with large maxillary antral pseudocysts were included. The “one-bony-window” approach involves the preparation of a large window opening of approximately 15 mm × 20 mm at the lateral wall. A mesiodistally extended intentional perforation was made in the upper part of the exposed membrane to enhance the access for instrumentation. The antral pseudocyst was removed in its entirety without being deformed to prevent rupture or leakage of the cystic contents. Subsequent detachment and elevation of the Schneiderian membrane at the sinus floor significantly reduced the perforation site, and bone grafting with implant placement was performed simultaneously. This alleviated the need to surgically repair the perforation. The lateral opening was either uncovered or repositioned using bony window lids. Healing abutments were connected after six months, and the final prosthesis was placed after two months. At the 1-year follow-up, the antral pseudocysts had resolved with no specific recurrence, and the stability of the augmented sinus was maintained with excellent implant survival. Within the limitations of our findings, the “one-bony-window” technique can be suggested for the simultaneous removal of large antral pseudocysts and maxillary sinus floor augmentation with favorable clinical outcomes.

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Section: Discussionmentioning

confidence: 99%

A Clinical Approach for the Removal of a Large Antral Pseudocyst with Simultaneous Maxillary Sinus Augmentation: A Case Series

Park,

Shin,

Shin

et al. 2024

Medicina

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“…The data of pre‐surgery was set as a fixed volume, and the others, defined as moving volumes, were set to match with the pre‐surgery one. Then, the margin of the augmented bone was drawn manually every 0.3 mm at the coronal plane (Wang et al., 2022) and filled (green region). The implant area was segmented by the typical threshold (yellow region) and cut off from the green region.…”

Section: Methodsmentioning

confidence: 99%

Clinical and radiographic outcomes of lateral sinus floor elevation with simultaneous hydrophilic implants placement: A retrospective study of 2–5 years

Qian,

Zhao,

et al. 2024

Clinical Oral Implants Res

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AimsTo investigate the clinical and radiographic outcomes of a chemically modified sandblasted large‐grit acid‐etched implant (hydrophilic) in lateral sinus floor elevation (LSFE), compared with a conventional one (hydrophobic).Materials and MethodsA retrospective study design was adopted. Patients who received LSFE with simultaneous implant placement were recruited. According to different types of implant surfaces, patients were divided into two groups (the hydrophilic group and the hydrophobic group). Implant survival rate (SR), endo‐sinus bone stability on the radiographs, mean probing depths, percentage of bleeding on probing, marginal bone loss, and patient satisfaction were evaluated.ResultsA total of 106 patients with 180 implants (hydrophilic:101, hydrophobic:79) in 119 maxillary sinuses were included. The follow‐up period ranged from 2 to 5 years. Three hydrophobic implants and one hydrophilic implant in four different patients failed. The SR of the hydrophilic group was higher than that of the hydrophobic group but without a significant difference (p > .05). The change and change rate of endo‐sinus bone height (ΔESBH and RΔESBH) and bone volume (ΔESBV and RΔESBV) in the hydrophilic group were less than those in the hydrophobic group, with a significant difference at 6 months after implantation. No other significant difference was found between the two groups.ConclusionWithin the limitations of this study, both hydrophilic and hydrophobic implants were suitable for LSFE with predictable clinical outcomes. Meanwhile, hydrophilic implants could contribute to the grafted endo‐sinus bone stability during healing time.

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“…The residual bone height (RBH) was determined as the distance from the alveolar crest to the maxillary sinus floor in the preoperative CBCT. Endo‐sinus bone gain (ESBG) was determined as the distance from the level of the sinus floor to the top of the grated materials along the central axis of the implant [5,13]. The apical bone height (ABH) was defined as the distance from the implant apex to the top of the grated materials along the central axis of the implant.…”

Section: Methodsmentioning

confidence: 99%

Endoscope‐assisted maxillary sinus floor augmentation with a mini‐lateral window: A retrospective study

Wang

et al. 2023

Clin Implant Dent Rel Res

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ObjectivesThe aim of this study was to evaluate the efficacy of endoscope‐controlled sinus floor augmentation through a mini‐lateral window, compared with traditional lateral window approach.Materials and MethodsThis retrospective research included 19 patients and 20 augmented sinuses using lateral window approach with simultaneous implant placement (test group: a 3–4 mm round osteotomy; control group: a 10 × 8 mm rectangular osteotomy). Preoperatively (T0), immediately after surgery (T1), and 6 months postoperatively (T2), cone‐beam computed tomography (CBCT) scans were obtained. Residual bone height (RBH), lateral window dimension (LWD), endo‐sinus bone gain (ESBG), apical bone height (ABH), and bone density were measured. Intraoperative and postoperative complications were recorded. Patients' evaluation of pain first day after surgery and a week later was assessed by visual analog scale (VAS).ResultsNo significant difference was found in ESBG, ABH between the two groups at T1, T2 or their changes from T1 to T2. However, the increase of bone density value in the test group was significantly higher than control group (356.28 ± 149.59 vs. 242.99 ± 129.54; p < 0.05). The sinus perforation rate of test and control group was 10% and 20%, respectively. The VAS score of the test group at the first day after surgery was significantly lower than control group (4.20 ± 1.03 vs. 5.60 ± 1.71; p < 0.05).ConclusionsEndoscope‐controlled maxillary sinus floor augmentation through a mini‐lateral window yield similar result with traditional approach in terms of bone height gain. The modified approach could facilitate new bone formation, reducing sinus perforation rate and postoperative pain.

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Repositioning of the bone window in lateral sinus floor elevation with simultaneous implant placement: A retrospective radiographic study

Cited by 5 publications

References 55 publications

A Clinical Approach for the Removal of a Large Antral Pseudocyst with Simultaneous Maxillary Sinus Augmentation: A Case Series

A Clinical Approach for the Removal of a Large Antral Pseudocyst with Simultaneous Maxillary Sinus Augmentation: A Case Series

Clinical and radiographic outcomes of lateral sinus floor elevation with simultaneous hydrophilic implants placement: A retrospective study of 2–5 years

Endoscope‐assisted maxillary sinus floor augmentation with a mini‐lateral window: A retrospective study

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