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NCT Number: NCT07533110

Evaluation Of The Success Rate of NOVAMag® SHIELD

This study hypothesizes that the SHIELD technique, when combined with a suitable bone graft material, enables successful immediate implant placement in Type 3 extraction sockets with buccal bone dehiscence, regardless of the extent of buccal bone loss. Specifically, it is proposed that the regenerative potential of the SHIELD technique is not significantly affected by the degree of buccal bone dehiscence, whether in compromised sockets (ST3 Subclass B, when a buccal dehiscence is present and extending 1/3 to 2/3 of the total length of the alveolus) or severely compromised sockets (ST3 Subclass C, for severe dehiscence passing more than 2/3 of the facial bone of the alveolus). All in all, this study aims to assess the clinical performance of the CE-approved medical device NOVAMag® SHIELD by evaluating its success rate and long-term suitability for the rehabilitation of edentulous regions in routine clinical settings. It further seeks to generate clinically meaningful evidence supporting the safety and efficacy of magnesium-based biomaterials in the management of complex post-extraction defects. In addition, the study investigates the CE-approved self-tapping conical implant VEGA® + to obtain comprehensive clinical data contributing to post-market surveillance and continuous product evaluation.

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Key information

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 4

Primary location

Clinica Dentaria Egas Moniz

Almada, Setúbal District, 2829-511, Portugal

Location status: Recruiting

Location contact

Patricia Lyra, PhD

CONTACT

[email protected]

212946806

About this study

This prospective, controlled observational clinical study aims to evaluate the clinical and radiographic outcomes of bone regeneration using the SHIELD Technique with the NOVAMag® membrane XS (SHIELD) in 40 patients of the periodontology department requiring regenerative treatment in the aesthetic region.

Patients will be stratified into two groups of 20 individuals each, based on the condition of the extraction socket. The first group will include compromised sockets classified as ST3 Subclass B, in which a buccal dehiscence extends from one-third to two-thirds of the total length of the alveolus, while the second group will comprise severely compromised sockets classified as ST3 Subclass C, in which the dehiscence extends over two-thirds of the facial bone of the alveolus.

In both groups, cerabone plus (a bovine bone substitute mixed with hyaluronic acid) will be used as the grafting material. In all patients, the CE-approved self-tapping conical implant VEGA® + will be immediately placed, allowing the study to obtain comprehensive clinical data contributing to post-market surveillance and continuous product evaluation.

All procedures will adhere to established ethical standards, including data protection (all patient data will be anonymized prior to collection to ensure confidentiality), informed consent, and rigorous clinical follow-up, ensuring that the study provides reliable and clinically relevant evidence on the performance of magnesium-based membranes in the management of complex post-extraction defects, as well as the clinical performance of immediately placed VEGA® + implants.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Adults aged 18 years or older;
  • Willingness and ability to provide informed consent and accept participation in the study.
  • Presence of a tooth indicated for extraction in the aesthetic zone (including premolars);
  • Clinical indication for immediate implant placement following tooth extraction;
  • Extraction sockets classified as Socket Type 3 (ST3), Subclass B or C, according to the Steigmann (2022) classification;

Exclusion criteria

  • Pregnancy or lactating women;
  • Systemic diseases or conditions known to affect bone metabolism (osteoporosis, uncontrolled diabetes, metabolic bone disorders, chronic corticosteroid therapy, etc.);
  • Active infection at the surgical site, including the presence of an acute abscess or other signs of ongoing local infection;
  • Hypersensitivity to the biomaterials intended for use in the regenerative procedure.

Treatment and study plan

SHIELD technique with NOVAMag membrane

Procedure

The SHIELD technique with NOVAMag membrane will be performed and cerabone plus (a bovine bone substitute mixed with hyaluronic acid) will be used as the grafting material. In all patients, the CE-approved self-tapping conical implant VEGA® + will be immediately placed, allowing the study to obtain comprehensive clinical data contributing to post-market surveillance and continuous product evaluation.

Primary outcomes

  1. Volumetric bone gain

    Time frame: From enrollment to the follow-up consultation at 3 to 4 months

    The primary outcome of the study will be volumetric bone gain assessed via CBCT from baseline to the 3-4 month follow-up, while secondary outcomes will include membrane handling characteristics, resorption profile, soft tissue healing, and patient-reported outcomes.

Study contacts

Contact information is provided by the study sponsor or research team.

João Botelho, PhD

CONTACT

[email protected]

212 946 700

Patrícia Lyra, PhD

CONTACT

[email protected]

212 946 700

Sponsors and collaborators

Lead sponsor

Egas Moniz - Cooperativa de Ensino Superior, CRL

Other

Collaborators

  • Botiss Biomaterials GmbH
  • Klockner Implant System

Registry information

Official study title

Evaluation Of The Success Rate of NOVAMag® SHIELD In Two Different Advanced Bone Defects: A Randomized Controlled Trial

Acronym: NOVASHIELD-RCT

Important dates

Study start
2026
Primary completion
2026
Study completion
2027
First posted
Apr 16, 2026
Registry last updated
Apr 21, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.