Libros

Purpose: To achieve a consensus among international experts regarding the management of postoperative complications after maxillary sinus floor elevation. Materials and methods: A total of 32 experts were enrolled and divided into dental implant providers (21), experts with a well-established reputation as sinus specialists (8), ear, nose and throat specialists (2), and experts with a well-established reputation as ear, nose and throat specialists (1). Before starting, a systematic literature search was conducted on the topic, and a list of articles was sent to the panel. The development group formulated 20 statements, which were sent out in the form of a survey. After each round, the statements upon which a consensus was not reached were reformulated based on anonymous comments from participants. A total of three rounds were planned. Results: After the third round, a consensus was reached on 15 key statements regarding the management of postoperative complications following sinus floor elevation. Agreement was established on issues including common postoperative symptoms, use of radiographic assessments, the necessity of surgical interventions such as partial or total graft removal, and the potential need for functional endoscopic sinus surgery. Near-consensus was achieved on additional points concerning normal postoperative symptoms, timing of total graft removal and approaches to late graft infections. Conclusions: The present Delphi consensus suggests that postoperative symptoms such as pain and swelling are generally manageable with appropriate pharmacological treatment. It also outlines conditions where radiographic evaluation is recommended for further assessment. Surgical options, including partial or total graft removal and functional endoscopic sinus surgery, are recommended based on the clinical scenario and response to initial treatments. Variability in practices, particularly regarding antibiotic use and specific intervention timing, suggests a need for further research to be conducted in order to standardise treatment protocols and address gaps in evidence. Palabras clave: consensus, maxillary sinusitis, peri-implantitis, sinus floor augmentation The authors declare there are no conflicts of interest relating to this study.

Purpose: To establish consensus-driven guidelines that could support the clinical decision-making process for implant-supported rehabilitation of the posterior atrophic maxilla and ultimately improve long-term treatment outcomes and patient satisfaction. Materials and methods: A total of 33 participants were enrolled (18 active members of the Italian Academy of Osseointegration and 15 international experts). Based on the available evidence, the development group discussed and proposed an initial list of 20 statements, which were later evalu-ated by all participants. After the forms were completed, the responses were sent for blinded ana-lysis. In most cases, when a consensus was not reached, the statements were rephrased and sent to the participants for another round of evaluation. Three rounds were planned. Results: After the first round of voting, participants came close to reaching a consensus on six statements, but no consensus was achieved for the other fourteen. Following this, nineteen statements were rephrased and sent to participants again for the second round of voting, after which a consensus was reached for six statements and almost reached for three statements, but no consensus was achieved for the other ten. All 13 statements upon which no consensus was reached were rephrased and included in the third round. After this round, a consensus was achieved for an additional nine statements and almost achieved for three statements, but no consensus was reached for the remaining statement. Conclusion: This Delphi consensus highlights the importance of accurate preoperative planning, taking into consideration the maxillomandibular relationship to meet the functional and aesthetic requirements of the final restoration. Emphasis is placed on the role played by the sinus bony walls and floor in providing essential elements for bone formation, and on evaluation of bucco-palatal sinus width for choosing between lateral and transcrestal sinus floor elevation. Tilted and trans-sinus implants are considered viable options, whereas caution is advised when placing pterygoid implants. Zygomatic implants are seen as a potential option in specific cases, such as for completely edentulous elderly or oncological patients, for whom conventional alternatives are unsuitable. Palabras clave: diagnostic procedure, implant dentistry, lateral window technique, pterygoid implants, sinus floor elevation, transcrestal sinus floor elevation, zygomatic implants The authors report no conflicts of interest relating to this study.

Objective: The aim of this study was to evaluate the patient’s morbidity and postsurgical complications after treatment of palatal donor sites after free gingival graft harvesting using leucocyte- and platelet-rich fibrin (L-PRF) membranes or a hemostatic agent with oxidized and regenerated cellulose. Method and materials: Forty-two palatal donor sites after free gingival graft harvesting in 42 patients were randomly assigned to experimental (L-PRF membrane) or control procedure (hemostatic agent). The primary outcome was postoperative pain related to the wound located at the palatal area, and the secondary outcomes were postoperative discomfort, inability to chew, postoperative stress, surgical chair time, thickness of the palatal fibromucosa, and thickness of the free gingival graft. The patient-reported outcome measures were recorded after 1 week. Results: After 1 week, a statistically significant difference was found between groups in terms of postoperative stress (P = .008). No statistically significant differences in terms of postoperative pain (P = .326), patient discomfort (P = .509), inability to chew (P = .936), or surgical chair time (P = .932) were recorded between the test and the control group. No statistically significant differences were recorded in terms of thickness of the palatal fibromucosa (P = .647) and thickness of the free gingival graft (P = .756) between groups. Postsurgical wound healing complications (ie, necrosis or infections) were not observed in both groups. Conclusion: Within their limitations, the present outcomes indicated that the application of L-PRF membrane at palatal donor sites after FGG harvesting did not produce significant advantages for the patients. Palabras clave: analog pain scale, free gingival graft, morbidity, platelet-rich plasma, wound healing

The aim of the present study was to generate an international and multidisciplinary consensus on the clinical management of implant protrusion into the maxillary sinuses and nasal fossae. A total of 31 experts participated, 23 of whom were experts in implantology (periodontologists, maxillofacial surgeons and implantologists), 6 were otolaryngologists and 2 were radiologists. All the participants were informed of the current scientific knowledge on the topic based on a systematic search of the literature. A list of statements was created and divided into three surveys: one for all participants, one for implant providers and radiologists and one for otolaryngologists and radiologists. A consensus was reached on 15 out of 17 statements. According to the participants, osseointegrated implants protruding radiographically into the maxillary sinus or nasal fossae require as much monitoring and maintenance as implants fully covered by bone. In the event of symptoms of sinusitis, collaboration between implant providers and otolaryngologists is required. Implant removal should be considered only after pharmacological and surgical management of sinusitis have failed. Palabras clave: consensus, dental implants, maxillary sinus, nasal fossae Conflict-of-interest statement: The authors declare there are no conflicts of interest relating to this study.

A simplified surgical technique is presented for closure and soft tissue augmentation of fresh extraction sockets that utilizes a xenogeneic collagen matrix as a substitute for a combined onlay-interpositional connective tissue graft. Ten alveoli receiving a socket preservation procedure (n = 5) or an immediate submerged implant (n = 5) were sealed with a xenogeneic collagen matrix, stabilized under small palatal and buccal full-thickness envelope flaps. Eight weeks after surgery, full wound closure was achieved in 9 out of 10 sites with satisfactory esthetic integration (mean ΔE score: 3.76). Results from this descriptive observational study suggest that this technique may represent a valuable and minimally invasive solution to simplify closure and soft tissue augmentation of fresh extraction sockets.

The purpose of this study was to evaluate clinical and radiologic outcomes using a newly developed device for maxillary sinus membrane elevation. Patients with a residual bone height of at least 3 mm were enrolled. Crestal sinus lift elevation and sinus graft were performed using the crestal approach sinus (CAS) kit. Graft was avoided if the residual bone crest was ≤ 2 mm less than the length of the planned implant. Outcome measures were implant and prosthesis failure, any biologic or technical complications, and marginal bone loss (MBL). A total of 35 consecutive patients underwent 49 crestal elevations of the sinus membrane. All the implants were followed for at least 2 years after placement (mean follow-up 37.3 months; range 24 to 54 months). No implants or prostheses failed during follow-up, and no membrane tears or other intraoperative or postoperative adverse events were observed. At the 2-year follow-up, mean MBL was 0.33 ± 0.24 mm (95% confidence interval: 0.08 to 0.30 mm). A total of 32 implants were placed after filling the sinus with anorganic bovine bone, while 17 implants were placed without grafting the sinus. Post-hoc analysis was performed using the sinus grafting remodeling index (SGRI) to evaluate radiographically the tissue remodeling patterns. The SGRI was statistically significantly higher when the sinus was grafted (P = .000). The CAS kit may provide a new option for minimally invasive crestal sinus surgery. Long-term randomized controlled trials with larger sample size are needed to confirm these preliminary results.