Clinical Evaluation of the Zygoma Implant: 3-Year Follow-Up at 16 Clinics

Kahnberg, Karl‐Erik; Henry, Patrick; Hirsch, Jan-Mikael; Öhrnell, Lars-Olov; Andréasson, Lars; Brånemark, Per‐Ingvar; Chiapasco, M.; Gynther, Göran; Finne, Kaj; Higuchi, Kenji K.W.; Isaksson, Sten; Malevez, Chantal; Neukam, F; Sevetz, Edward; Urgell, Juan J.P.; Widmark, Göran; Bolind, Pia

doi:10.1016/j.joms.2007.05.013

Cited by 69 publications

(72 citation statements)

References 8 publications

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“…One randomized clinical trial, 16 16 prospective studies, [6][7][8]10,11,[17][18][19][20][21][22][23][24][25][26][27] and 51 retrospective analyses 1,2,9,13,28-74 were included. The only randomized clinical trial 16 was randomized for the performance of inferior meatal antrostomy.…”

Section: Description Of the Studies And Analysismentioning

confidence: 99%

“…The only randomized clinical trial 16 was randomized for the performance of inferior meatal antrostomy. One was study was a multicenter approach performed in several countries, 7 whereas the other 67 studies were performed in 15 countries: 13 in Spain, 9 in the United States, 8 in Sweden, 6 in Brazil, 5 each in China, Germany, and Italy, 4 in Portugal, 3 in M A N U S C R I P T Belgium, 2 each in Colombia, South Africa, and United Kingdom, and 1 each in Japan, Norway, and Switzerland. Detailed data of the 68 included studies are listed in Table 1.…”

Section: Description Of the Studies And Analysismentioning

confidence: 99%

“…2 Maxillectomy defects, maxillary sinus aplasia, and cleft deformities are even more challenging conditions. 3,4 The installation of zygomatic implants (ZIs) is one of the various techniques described in the literature to treat the atrophic maxilla, 5 and several prospective studies [6][7][8][9][10][11] have showed successful outcomes. A previous review on the survival of ZIs 12 observed that most failures were detected until 6 months after surgery, with a high 12-year cumulative survival rate (CSR).…”

Section: Introductionmentioning

confidence: 99%

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Survival and Complications of Zygomatic Implants: An Updated Systematic Review

Chrcanovic

Albrektsson

Wennerberg

2016

Journal of Oral and Maxillofacial Surgery

168

166

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Survival and complications of zygomatic implants: an updated systematic review ABSTRACTPurpose: To assess the survival rate of zygomatic implants (ZIs) and the prevalence of complications based on previously published studies.Methods: An electronic search was performed in December/2015 in three databases and was supplemented by hand-searching. Clinical series of ZIs were included. Interval survival rate (ISR) and cumulative survival rate (CSR) were calculated. The untransformed proportion of complications (sinusitis, soft tissue infection, paresthesia, oroantral fistulas) was calculated, considering the prevalence reported in the studies. Results:Sixty-eight studies were included, comprising 4556 ZIs in 2161 patients, with 103 failures.The 12-year CSR was 95.21%. Most failures were detected within the six-month postsurgical period. Studies (n=26) that exclusively evaluated immediate loading showed a statistically lower ZI failure rate than studies (n=34) evaluating delayed loading protocols (P=0.003). Studies (n=5) evaluating ZIs for the rehabilitation of patients after maxillary resections presented lower survival rates. The probability of presenting postoperative complications with ZIs was as follows: sinusitis 2.4% (95%CI 1.8-3.0), soft tissue infection 2.0% (95%CI 1.2-2.8), paresthesia 1.0% (95%CI 0.5-1.4), oroantral fistulas 0.4% (95%CI 0.1-0.6). However, these numbers may be underestimated, as many studies failed to mention the prevalence of these complications. Conclusion:ZIs present a high 12-year CSR, with most failures occurring at the early stages postoperatively. The main observed complication related to ZIs was sinusitis, which may appear several years after ZI installation surgery.

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Section: Description Of the Studies And Analysismentioning

confidence: 99%

Section: Description Of the Studies And Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Survival and Complications of Zygomatic Implants: An Updated Systematic Review

Chrcanovic

Albrektsson

Wennerberg

2016

Journal of Oral and Maxillofacial Surgery

168

166

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“…Davó and Pons [20] have reported several complications for ZIs supportedfixed prostheses, such as penetration of the orbital cavity during the drilling protocol, infection following fistula, sinusitis, fracture of the abutment screw and fracture of the prosthesis. Moreover, Kahnberg et al [21] cautioned that if additional ZIs implants are needed, the anterior ZIs might involve the wall of the orbit. Other reported complications were soft tissue infection, paresthesia and oroantral fistulae.…”

Section: Discussionmentioning

confidence: 99%

Endoscopically-Assisted Zygomatic Implant Placement: A Novel Approach

González-García

Monje

Moreno-García

et al. 2015

J. Maxillofac. Oral Surg.

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Background Zygomatic implants (ZIs) have been proposed as a valid alternative to advance bone-grafting procedures in the rehabilitation of the severe atrophied upper maxilla, with a reported overall success rate of more than 95 %. Otherwise, the use of the endoscope has been described for the treatment of maxillofacial trauma, orthognatic surgical procedures, sinonasal pathology, salivary gland disease, and TMJ internal derangement. A careful identification of anatomical landmarks is of utmost importance while trying to avoid potential complications during the insertion of ZIs. Several approaches for ZI insertion have been reported, such as the classical approach; the sinus slot technique; and the exteriorized approach. Materials and MethodsThe authors first introduce in the literature the endoscopically-assisted approach for the insertion of ZIs in the extremely severe atrophic maxilla.Results Optimal results in terms of ZIs positioning with no damage to surrounding structures were obtained. Conclusions By means of this new technique the surgeon may minimize the risk of complications related to the damage of neighbouring anatomic structures, such as orbital disruption or infraorbitary nerve damage, while ensuring an adequate drill positioning and angulation for the placement of one or two implants into the zygomatic bone.

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“…Some examples of late complication are: loss of fixation or osseointegration, bucco sinusal communication, fenestration of the buccal mucosa, chronic sinusitis and sinus pathologies, palatal emergency of fixations, mucositis and peri-implantitis. (6)(7)(8)(9)(10)(11)(12)(13)(14) Recent systematic review studies reported the survival and presence of complications related of zygomatic fixation. (15) They conclude that the studies with a high level of evidence are scarce.…”

mentioning

confidence: 99%

Zygomatic implant: Late complications in a period of 12 years of experience

Filho¹,

Amaral²,

Curra³

et al. 2017

Rev. Clin. Periodoncia Implantol. Rehabil. Oral

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Purpose Zygomatic implants (ZI) constitute a suitable alternative for treating severe maxillary atrophy. However, a large number of complications associated with ZI have been reported in the literature. This paper presents the late complications associated with ZI during 12 years of experience in the same institution. Materials and methods All cases of ZI from 2000 to 2013 were retrospectively evaluated and the major complications relating to this type of rehabilitation were selected to report. Results The major complications found were: loss of implant, loss of osseointegration, bucco-sinusal communication, fenestration of alveolar mucosa, sinus pathology, and emergency palate fixations. Conclusion The clinical experience of the dental surgeon is critical in the success of zygomatic fixation. Furthermore, there should be careful planning of rehabilitation to reduce the rate of complications.

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Clinical Evaluation of the Zygoma Implant: 3-Year Follow-Up at 16 Clinics

Cited by 69 publications

References 8 publications

Survival and Complications of Zygomatic Implants: An Updated Systematic Review

Survival and Complications of Zygomatic Implants: An Updated Systematic Review

Endoscopically-Assisted Zygomatic Implant Placement: A Novel Approach

Zygomatic implant: Late complications in a period of 12 years of experience

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