Effect of Maxillary Sinus Membrane Perforation on Implant Survival Rate: A Retrospective Study

2017 ◽  
Vol 32 (2) ◽  
pp. 401-407 ◽  
Author(s):  
Carlos de Almeida Ferreira ◽  
Carolina Martinelli ◽  
Arthur Novaes ◽  
Túlio Pignaton ◽  
Camila Guignone ◽  
...  
Keyword(s):  
Retrospective Study ◽  
Survival Rate ◽  
Maxillary Sinus ◽  
Implant Survival ◽  
Implant Survival Rate ◽  
Membrane Perforation ◽  
Sinus Membrane

scholarly journals Comparison of Clinical Parameters in Dental Implant Therapy between Implant Site Development Using Porcine- and Bovine-Derived Xenografts

Technologies ◽  
2021 ◽  
Vol 9 (4) ◽  
pp. 72
Author(s):  
Li-Ching Chang
Keyword(s):  
Retrospective Study ◽  
Survival Rate ◽  
Dental Implant ◽  
Bovine Bone ◽  
Clinical Parameters ◽  
Implant Survival ◽  
Site Development ◽  
Dental Implantation ◽  
Implant Survival Rate ◽  
Implant Therapy

Purpose: The aim of this study is to compare the effects of two xenografts, i.e., porcine- and bovine-derived xenografts, on dental implant therapy after implant site development. Materials and Methods: This retrospective study involved adults who underwent dental implantation between January 2012 and December 2020. Various patient and implant-site characteristics were collected from the patient records. The implant-surgery clinical parameters of the porcine- and bovine-derived xenografts used for implant site development were analyzed and compared. Results: A total of 116 subjects with 168 dental implants were included in this study. There was less soft bone in the porcine bone group of the maxilla. However, there was less soft bone and a greater percentage of “primary stability ≥35 N” in the bovine bone group of the mandible. However, no significant differences in regrafting rate, post-operative infection rate, or implant survival rate were found between the bovine and porcine bone groups. Conclusion: The effects of implant site development using bovine- and porcine-origin xenografts are comparable in terms of the implant-therapy clinical parameters, including the regrafting rate and implant survival rate. Thus, the choice of xenografts could be made according to the patient’s religious requirements. However, the reported results should be used with caution, considering the limitations of this retrospective study.

scholarly journals Tilted Implants for Full-Arch Rehabilitations in Completely Edentulous Maxilla: A Retrospective Study

2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
Nicolò Cavalli ◽  
Bruno Barbaro ◽  
Davide Spasari ◽  
Francesco Azzola ◽  
Alberto Ciatti ◽  
...  
Keyword(s):  
Treatment Outcome ◽  
Retrospective Study ◽  
Survival Rate ◽  
Joint Pain ◽  
Implant Survival ◽  
Temporomandibular Joint Pain ◽  
Implant Survival Rate ◽  
Prosthetic Complications ◽  
Viable Treatment

Purpose. The aims of this study were to assess the treatment outcome of immediately loaded full-arch fixed bridges anchored to both tilted and axially placed implants in the edentulous maxilla and to evaluate the incidence of biological and prosthetic complications.Materials and Methods. Thirty-four patients (18 women and 16 men) were included in the study. Each patient received a maxillary full-arch fixed bridge supported by two axial implants and two distal tilted implants. A total of 136 implants were inserted. Loading was applied within 48 hours of surgery and definitive restorations were placed 4 to 6 months later. Patients were scheduled for followup at 6, 12, 18, and 24 months and annually up to 5 years. At each followup plaque level and bleeding scores were assessed and every complication was recorded.Results. The overall follow-up range was 12 to 73 months (mean 38.8 months). No implant failures were recorded to date, leading to a cumulative implant survival rate of 100%. Biological complications were recorded such as alveolar mucositis (11.8% patients), peri-implantitis (5.9% patients), and temporomandibular joint pain (5.9% patients). The most common prosthetic complications were the fracture or detachment of one or multiple acrylic teeth in both the temporary (20.6% patients) and definitive (17.7% patients) prosthesis and the minor acrylic fractures in the temporary (14.7% patients) and definitive (2.9% patients) prosthesis. Hygienic complications occurred in 38.2% patients. No patients’ dissatisfactions were recorded.Conclusions. The high cumulative implant survival rate indicates that this technique could be considered a viable treatment option. An effective recall program is important to early intercept and correct prosthetic and biologic complications in order to avoid implant and prosthetic failures.

scholarly journals Surgical and Prosthetic Outcomes of 967 Implants Under Immediate or Delayed Loading in Full-Arch Rehabilitation: a Retrospective Study With up To 5 Years of Follow-Up

2021 ◽  
Vol 24 (3) ◽  
Author(s):  
Geninho Thome ◽  
Waleska Caldas ◽  
Camila Pereira Vianna ◽  
Carolina Accorsi Cartelli ◽  
Larissa Carvalho Trojan
Keyword(s):  
Retrospective Study ◽  
Survival Rate ◽  
Treatment Time ◽  
Survival Rates ◽  
Immediate Loading ◽  
Implant Survival ◽  
Prosthesis Survival ◽  
Implant Survival Rate ◽  
Clinical Records

Objective: The aim of this study was to evaluate implant and prosthesis survival rates in full-arch rehabilitation supported by implants with platform-switched Morse taper connection submitted to immediate or delayed loading, after up to 5 years of follow-up. Material and Methods: Data was retrospectively collected from clinical records of patients who were treated by means of implant-supported full-arch rehabilitation. Survival rates of implants and prostheses were evaluated according to immediate or delayed loading. Results: The sample comprised 967 implants. Of those, 627 were submitted to immediate loading (IL) while 340 to delayed loading (DL). After a follow-up period of up to 5 years, the implant survival rate for IL was of 99.7% (622/627 implants) and 97.2% (333/340 implants) for DL. The overall implant survival rate was 98.8% (955/967 implants). Prosthesis survival rate was 100% (N = 178) for both groups. Significantly more implants in the DL group presented bone loss (p > 0.01), either greater or lower than 2 mm, during the follow-up period. Conclusion: Within their limits, the present results suggest that full-arch rehabilitation with platform-switched Morse taper connection implants can lead to surgical and prosthetic predictable outcomes. Moreover, immediate loading protocol seems to be a good option for the rehabilitation of fully edentulous patients, as it involves a shorter treatment time, which may lead to greater patient satisfaction.   Keywords Dental implants; Rehabilitation; Survival rate; Retrospective study.

scholarly journals PRF-Solution in Large Sinus Membrane Perforation with Simultaneous Implant Placement-Micro CT and Histological Analysis

Membranes ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 438
Author(s):  
Horia Mihail Barbu ◽  
Stefania Andrada Iancu ◽  
Violeta Hancu ◽  
Daniel Referendaru ◽  
Joseph Nissan ◽  
...  
Keyword(s):  
Maxillary Sinus ◽  
Micro Ct ◽  
Implant Placement ◽  
Membrane Perforation ◽  
Sinus Floor Augmentation ◽  
Maxillary Sinus Floor ◽  
Sinus Floor ◽  
The Mean ◽  
Maxillary Sinus Floor Augmentation ◽  
Sinus Membrane

Background: The purpose of the study was to analyze the efficacy of platelet-rich fibrin (PRF) as a single augmentation material for complicated cases of maxillary sinus floor elevation, resulting from membrane perforation or previous infections. Methods: Implant insertion in the posterior region of the maxilla was simultaneously performed with maxillary sinus floor augmentation. Schneiderian membrane elevation can be accompanied by extremely serious sinus membrane perforation, due to accidental tearing or intended incision for mucocele removal. PRFs were placed in the sinus cavity both for membrane sealing and sinus floor grafting. Radiological, histological and micro-CT analyses were performed. Implant survival was assessed every 6 months for 1 to 4 years, with a mean follow up of 1.8 years, after prosthetic loading. Radiological examinations were performed on CBCT at 9 and 12 and 36 months postoperatively and revealed improved degrees of radiopacity. Results: 19 implants were simultaneously placed in the course of nine maxillary sinus floor augmentation surgeries, with successful outcomes in terms of bone grafting and implant integration. New bone formation was evidenced 12 months postoperatively on radiological examination, micro-CT analysis, and histological analysis of a harvested bone segment from the augmented maxillary sinus. The mean gain in bone height of the sinus floor augmentation was 6.43 mm, with a maximum of 9 mm. The mean amount of vital bone obtained from histologic assessment was 52.30%, while bone volume/tissue volume ratio in micro-CT 3D had a mean of 50.32%. Conclusions: PRF may be considered as an alternative treatment for a single surgery of sinus augmentation with simultaneous implant placement, even in complicated cases with significant sinus membrane tearing.

scholarly journals Short (6 mm) and Regular Dental Implants in the Posterior Maxilla–7-Years Follow-up Study

2021 ◽  
Vol 10 (5) ◽  
pp. 940
Author(s):  
Jakub Hadzik ◽  
Paweł Kubasiewicz-Ross ◽  
Izabela Nawrot-Hadzik ◽  
Tomasz Gedrange ◽  
Artur Pitułaj ◽  
...  
Keyword(s):  
Survival Rate ◽  
Dental Implants ◽  
Clinical Results ◽  
Implant Survival ◽  
Implant Survival Rate ◽  
Short Implants ◽  
Posterior Maxilla ◽  
Patient Reported ◽  
Bone Level

Short 6 mm dental implants are considered as an alternative to the maxillary sinus elevation and bone augmentation procedure where there is a reduced alveolar ridge height. The aim of this study was to compare the implant survival rate between short dental implants (6 mm) and regular length implants (11–13 mm) when placed in combination with bone grafting and loaded with a single non splinted crown, seven years after placing the implant. It was conducted as a controlled clinical study of 30 patients with partial edentulism in the posterior maxilla. The protocol included radiological and clinical evaluation of the C/I ratio (length of the superstructure divided by the length of the implant crestal part), marginal bone level (MBL), ultrasonography measurement of soft tissue surrounding implant (STT), patient-reported outcomes, and biological and technical complications. A total number of 28 implants (93%) remained integrated during follow-up period. MBL of 0.50 and 0.52 mm was observed for short implants and regular implants, respectively. MBL was checked for correlation with STT, and a negative correlation was found between MBL: STT. Our study has demonstrated a significantly lower implant survival rate for short implants compared to regular implants (87% compared to 100%). Despite the loss of several implants, good clinical results were achieved in the remaining implants in both groups. It is, therefore, worth considering short implants as an alternative to regular implants with a sinus lift surgery.

scholarly journals Implant Placement after Closure of Oroantral Communication by Sinus Bone Graft Using a Collagen Barrier Membrane in the Shape of a Pouch: A Case Report and Review of the Literature

Medicina ◽  
2021 ◽  
Vol 57 (6) ◽  
pp. 626
Author(s):  
Jae-Ha Baek ◽  
Byung-Ock Kim ◽  
Won-Pyo Lee
Keyword(s):  
Bone Graft ◽  
Maxillary Sinus ◽  
Maxillary Sinusitis ◽  
Collagen Membrane ◽  
Implant Placement ◽  
Barrier Membrane ◽  
Membrane Perforation ◽  
Oroantral Communication ◽  
Sinus Membrane ◽  
Posterior Area

Oro-antral communication (OAC) acts as a pathway for bacteria between the maxillary sinus and oral cavity, and is a common complication after the removal of a dental implant or extraction of a tooth from the maxillary posterior area. In the case of an untreated OAC, oro-antral fistula develops and becomes epithelialized. We aimed to introduce a treatment for OAC closure via a sinus bone grafting procedure using bone tacks and a collagen membrane with an allograft. The procedure was performed by applying an absorbable membrane made in pouch form. This membrane acted as a barrier for closing the large sinus membrane perforation. Bone tacks were used to fix the membranes. Subsequently, the maxillary sinus was filled with the allograft, and the absorbable membrane was reapplied. Primary closure was achieved by performing a periosteum-releasing incision for a tension-free suture. After 6 months, sufficient bone dimensions were gained without any occurrence of maxillary sinusitis or recurrence of OAC. Additional bone grafts and implantation could be performed to rehabilitate the maxillary posterior area. We conclude that this technique might be a useful treatment for reconstructing the maxillary posterior area with simultaneous sinus bone graft and OAC closure.

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