Evidence map›Paper›PMID 35359196›Full record

ArticleInternational journal of implant dentistry2022

Round and flat zygomatic implants: effectiveness after a 1-year follow-up non-interventional study.

Carlos Aparicio, Waldemar D Polido, James Chow, Rubén Davó, Bilal Al-Nawas

Registry-linked trialAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in International journal of implant dentistry, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07258940 (A 1-year Prospective Multicenter Clinical Investigation to Assess Safety, Performance and Clinical Benefits of the NobelZygoma TiUltra Implant System in the Rehabilitation of Severely Atrophic Maxillae), which is not on this map. Cited by 5 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed, 3 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT07258940 nanot yet recruitingnot on this mapstarted 2026, after this paper: background citation

A 1-year Prospective Multicenter Clinical Investigation to Assess Safety, Performance and Clinical Benefits of the NobelZygoma TiUltra Implant System in the Rehabilitation of Severely Atrophic Maxillae

TypeinterventionalSponsorNobel BiocareRan2026 to 2029Enrolled85ConditionsEdentulous Maxilla, Maxillary Bone Loss, Atrophic MaxillaArmsNobelZygoma™ 0° CC TiUltra™implant, NobelZygoma™ 45° Ext Hex TiUltra™ implant, Multi-Unit Abutment Xeal Zygoma Ext Hex RP, 17° Multi-Unit Abutment Xeal Zygoma Ext Hex RP, 45° Multi.Unit Abutment Xeal Zygoma CC RP
3 · Its place in the literature

Who cites it

5 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Pooled it
  2. Indications for zygomatic implants: a systematic review.International journal of implant dentistry · 2023
    Pooled it
  3. Pooled it
  4. Article
  5. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Carlos AparicioZygomatic Unit at Hepler Bone Clinic, ZAGA Center, Roman Macaya, 22-24, 08022, Barcelona, Spain. carlos.aparicio@zagacenters.com.ORCID 0000-0002-2069-691X
Waldemar D PolidoOral and Maxillofacial Surgery, Indiana University School of Dentistry, 1121 W. Michigan Street, Indianapolis, IN, 46202, USA.
James ChowZAGA Center Hong Kong, Associated Brånemark Osseointegration Center, 1901-1905, 1912-1913, The Center, 99 Queen's Road Central, Hong Kong, Hong Kong SAR.
Rubén DavóZAGA Center, Alicante, Spain.
Bilal Al-NawasDepartment for Oral and Maxillofacial Surgery, Plastic Surgery, University Medical Center of the J. Gutenberg University Mainz, Augustusplatz 2, 55131, Mainz, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionThere are few zygomatic implants (ZI) designs available. The objective of this non-interventional study was to report the effectiveness of two new site-specific ZI, selected and placed following the zygoma anatomy-guided approach (ZAGA). MATERIALS AND

methodsConsecutive patients presenting indications for rehabilitation using ZI were treated according to ZAGA Concept recommendations. Implants were immediately loaded following the manufacturer's instructions. Success criteria regarding prosthetic offset, rhino-sinus status, soft tissue condition, and implant stability were additionally used as outcome parameters.

resultsTwenty patients were followed for a period of 12 to 28 months (average 18.8 months). Ten received 2 ZI plus regular anterior implants; One received 3 ZI plus regular implants and nine received 4 ZI. In total, 59 ZI were placed, 34 (58%) Straumann ZAGA-Flat design, and 25 (42%) ZAGA-Round. Forty-nine percent of the sites were classified as ZAGA-4 type and 27% as ZAGA-2. Four patients (20%) presented discontinuities of the sinus-nose floor before surgery and 15 patients (75%) presented previous sinus opacities. All implants bar one reached more than 45 N.cm of insertion torque. No surgical complications were observed. After 1 year, the modified Lund-Mackay score was negative in 17 patients. Seventeen sites in 11 patients exhibited decreased opacity when pre-surgical imaging was compared to 1-year post-surgical CBCT. All implants and prostheses remained stable and in function.

conclusionsThe study concluded 100% implant/prosthesis survival rates and low complication levels. Within the limitations of the sample and observation period, results suggest that even in cases of extremely resorbed maxillae (as per cases in this study), ZAGA-Flat and ZAGA-Round ZI are viable treatment options when restoring atrophic maxillae following the ZAGA protocol.

Indexed as

Dental Implantation, EndosseousDental ImplantsDental Prosthesis, Implant-SupportedFollow-Up StudiesHumansZygomaDental ImplantsORIS criteriaZAGAZAGA-FlatZAGA implantsZAGA-RoundZygomatic implants

Identifiers

PMID35359196
PMCPMC8971328

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Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.