Clinical, microbiologic and radiologic assessment of soft and hard tissues surrounding zygomatic implants: a retrospective study

Lombardo, Giorgio; D’Agostino, Antonio; Trevisiol, Lorenzo; Mascellaro, Anna; Gomez-Lira, Macarena; Pardo, Alessia; Favero, Vittorio; Nocini, Pier Francesco

doi:10.1016/j.oooo.2016.06.011

Cited by 19 publications

(16 citation statements)

References 21 publications

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“…Patients with extremely atrophic upper posterior maxilla require major surgical sinus lift procedures [1] or even zygomatic implants to be successfully restored and then recover their oral function [2–5]. These options are clinically challenging, because of the increased patient morbidity and also the greater chance of intra- and postoperative complications [6, 7].…”

Section: Introductionmentioning

confidence: 99%

Cumulative Success Rate of Short and Ultrashort Implants Supporting Single Crowns in the Posterior Maxilla: A 3-Year Retrospective Study

Lombardo

Pighi

Marincola

et al. 2017

International Journal of Dentistry

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Aim To determine cumulative success rate (CSR) of short and ultrashort implants in the posterior maxilla restored with single crowns. Patients and Methods We performed a retrospective study in 65 patients with 139 implants. 46 were ultrashort and 93 short. Implants were placed with a staged approach and restored with single crowns. Success rate, clinical and radiographic outcomes, and crown-to-implant ratio (CIR) were assessed after three years. Statistical analysis was performed by descriptive and inferential statistics. A log-binomial regression model where the main outcome was implant success was achieved. Coefficients and 95% confidence intervals were reported. Analyses were performed with Stata 13.2 for Windows. Results 61.54% of patients were female and mean overall age was 51.9 ± 11.08 years old. Overall CSR was 97.1% (95% CI: 92.4–98.9): 97.9 and 95.1% for short and ultrashort, respectively (P value: 0.33). Four implants failed. Covariates were not associated with CSR (P value > 0.05). Regression model showed coefficients correlated with implant success for ultrashort implants (0.87) and most of covariates but none were statistically significant (P values > 0.05). Conclusions Our results suggest that short and ultrashort implants may be successfully placed and restored with single crowns in the resorbed maxillary molar region.

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Section: Introductionmentioning

confidence: 99%

Cumulative Success Rate of Short and Ultrashort Implants Supporting Single Crowns in the Posterior Maxilla: A 3-Year Retrospective Study

Lombardo

Pighi

Marincola

et al. 2017

International Journal of Dentistry

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“…In this approach, the preparation of the implant site is guided by the anatomy of the area, and no initial window or slot is opened at the lateral wall of the maxillary sinus. Thus, depending on the relationship between the zygomatic buttress and the intra-oral starting point of the zygomatic implant, the path of the implant body will vary from being fully intrasinus to being fully extrasinus, i.e., this approach for the placement of the zygomatic implant is neither 'internal' nor 'external' to the sinus wall but, instead, promotes the placement of the zygomatic implant according to the anatomy of the patient [8,9].…”

Section: Introductionmentioning

confidence: 99%

Clinical Performance of Zygomatic Implants—Retrospective Multicenter Study

Davó

Bankauskas²,

Laurinčikas³

et al. 2020

JCM

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The main objective of this analysis was to evaluate (1) implant survival, (2) biologic complications, and (3) demographics associated with zygomatic implants placed according to the zygomatic anatomy-guided approach (ZAGA). This retrospective multicenter study reviewed data from the charts of 82 consecutive patients who had received 182 zygomatic implants. Patients were fully edentulous (62.2%), partially edentulous (22.0%), or had failing dentition (15.9%). Most patients (87.5%) did not have previous sinusitis and 11.3% had been previously treated for it. Additionally, about half of the patients (53.8%) did not present periodontal pathology, and one-third (36.3%) did, but were subsequently treated. Most implants (93.8%) were loaded immediately, i.e., within 48 h of placement. Implants were followed for 10.5 ± 7.2 months, and all were recorded as surviving and stable at last follow-up. Post-operative complications were infrequent and included sinusitis (10.1%) and peri-implant hyperplasia (0.8%). The low complication rate and 100% implant survival and stability indicate that zygomatic implants offer a viable treatment option when performing graftless restoration of severely resorbed maxilla, including immediate loading protocols.

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“…The shape and structure of the zygomatic bones presented good anchorage alternative for longer implants (zygomatic implants). The efficacy of rehabilitation with zygomatic implants in maxilla is well documented . The limitations for the more comprehensive use of this method were invasive surgery under general anesthesia and prosthetic challenges with palatally positioned implant heads.…”

Section: Introductionmentioning

confidence: 99%

“…The efficacy of rehabilitation with zygomatic implants in maxilla is well documented. [11][12][13] The limitations for the more comprehensive use of this method were invasive surgery under general anesthesia and prosthetic challenges with palatally positioned implant heads.…”

Section: Introductionmentioning

confidence: 99%

Platform switch hybrid zygoma implants improve prosthetics and marginal bone protection after extra‐sinus placement

Aleksandrowicz

Kusa-Podkańska

Tomkiewicz

et al. 2020

Clin Implant Dent Rel Res

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Purpose The aim of our studdy is clinical evaluation of Platform switch hybrid zygoma implants. Materials and Methods 117 zygomatic implants were followed up during this time. They included 55 Brånemark System zygoma implants, 38 Noris implants, and 24 novel iRES hybrid implants with platform switch. Results Bone quality and quantity are the prerequisite for successful implant treatment. Zygomatic implants are intended for patients with severely resorbed maxilla that cannot accommodate conventional implants without prior extensive bone grafting. Such regenerative procedures, like sinus lifts, prolong implant rehabilitation to several months (12–18). Furthermore, extensive grafts are less predictable showing varying degrees of graft resorption. Zygoma implants enable full, often immediate, reconstruction of the upper dental arch without the need for sinus lift treatment. The original zygoma protocol runs the implants through the sinus, requires general anesthesia, and positions the prosthetic platform of the implants on the palate, which makes prosthesis cumbersome. It also induces risk for post‐op sinusitis. Extra‐sinus approach with novel zygoma hybrid implants bypasses sinuses and positions the implant prosthetic platform on the crest allowing for same good prosthetics as on conventional dental implants. Furthermore, crestal threads and a platform‐switch, of the novel zygoma design, increase implant anchorage and minimize marginal bone loss. The study presents evolution of zygoma implant rehabilitation protocol and zygoma implant design in our clinical practice over 15 years (2004‐2019). Conclusion Extra‐sinus zygomatic implant placement lowers the risk of post‐op sinusitis and makes procedure possible to be done in local anesthesia.

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Clinical, microbiologic and radiologic assessment of soft and hard tissues surrounding zygomatic implants: a retrospective study

Cited by 19 publications

References 21 publications

Cumulative Success Rate of Short and Ultrashort Implants Supporting Single Crowns in the Posterior Maxilla: A 3-Year Retrospective Study

Cumulative Success Rate of Short and Ultrashort Implants Supporting Single Crowns in the Posterior Maxilla: A 3-Year Retrospective Study

Clinical Performance of Zygomatic Implants—Retrospective Multicenter Study

Platform switch hybrid zygoma implants improve prosthetics and marginal bone protection after extra‐sinus placement

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