NOVAMag® fixation screw

Resorbable, biodegradable, magnesium metal alloy

Biodegradable metal

Resorbable fixation screw

Controlled degradation

Made from a completely resorbable, biodegradable, magnesium metal alloy, NOVAMag® fixation screws are ideal for securing barrier membranes, bone grafts and bone augmenting material. The screws provide support during the critical healing period and are completely resorbed within approximately one year1, 2. The screws integrate within the bone as they degrade, with new bone forming up to the surface of the screws3.

Five sizes for all your fixation needs

The smallest screw (the NOVAMag® fixation screw XS) is specifically designed for securing membranes, such as the NOVAMag® membrane, the collagen membranes Jason® membrane or collprotect® membrane, as well as non-resorbable PTFE membranes, such as permamem®.

NOVAMag® fixation screws S-XL can be used for bone block fixation. Because the fixation screws are resorbable, remnants of the screws pose no risk during dental implant placement and can be left to completely resorb over a period of approximately one year after their implantation.

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The NOVAMag® fixation screw is indicated for the fixation of barrier membranes and/or bone grafts in the support of guided tissue and bone regeneration (GTR and GBR):

  • in case of surgical bone defects and bone wall defects
  • in the context of sinus floor augmentation
  • in the context of ridge augmentation
  • in the context of ridge reconstruction for prosthetic treatment
  • in the context of a treatment of fenestration defects
  • in the context of maxillofacial surgeries (the fixation system is not to be used in conjunction with a plate system)
  • in case of periodontal bone defects (one to three-wall defects, furcation defects)
  • after apicectomy, cystectomy, resection of retained teeth and resection of other bone lesions
  • in case of augmentation in conjunction with immediate or delayed implant placement.
Block Augmentation using NOVAMag® fixation screw S-XL
  • Consideration of soft tissue management
  • Appropriate screw size selected for augmentation
  • Bone block predrilled using the NOVAMag® drill 1.35
  • Pilot hole drilled using NOVAMag® drill 1.0
  • The insertion hole widened using the NOVAMag® drill 1.2 or 1.35 for medium to hard bone types
  • NOVAMag® fixation screw inserted using the NOVAMag® connector
  • Screw drive removed using the NOVAMag® safety cutter
Membrane Fixation using NOVAMag® fixation screw XS-S
  • Consideration of soft tissue management
  • Pilot hole drilled using precision drill
  • NOVAMag® fixation screw XS inserted via the NOVAMag® connector
  • The drive is removed either via sheering off or via the NOVAMag® safety cutter
  • Origin: Synthetic
  • Composition: Magnesium Alloy
  • Diameter: 1.0 mm (XS) or 1.4 mm (S, M, L, XL)
  • Length: 3.5 mm (XS), 7 mm (S), 9 mm (M), 11 mm (L), 13 mm (XL)
  • Application: Follow the appropriate drilling protocol as directed in the NOVAMag® fixation screw IFU
  • Degradation time: Resorbable (within approximately 1 year)

Product Specifications

Art.-No. Size Screw Dimension Amount/box
74100402 XS 1.0 x 3.5 mm 2
74140701 S 1.4 x 7 mm 1
74140901 M 1.4 x 9 mm 1
74141101 L 1.4 x 11 mm 1
74141301 XL 1.4 x 13 mm 1

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FAQ

Biodegradable metals are a class of metal that when implanted will gradually degrade and be completely resorbed. The degradation products are then metabolized by the human body.

The NOVAMag® fixation screw has had a specially applied surface treatment to delay the onset of the magnesium metal degradation. This enables the screw to provide a secure fixation during the critical healing period.

As it degrades the magnesium metal is transformed into magnesium salts, which are then resorbed by the body1-3. As the magnesium salts are resorbed, they are replaced by the patients’ native bone.

The NOVAMag® fixation screws resorb over a period of approximately 1 year.

The NOVAMag® fixation screw provides a secure fixation of barrier membranes and/or bone augmentation material. Unlike conventional fixation screws composed of steel or titanium, the NOVAMag® fixation screw is completely degradable. Despite its degradative properties, the NOVAMag® fixation screw is stable during the necessary healing period. Compared to other degradable fixation screw devices, the NOVAMag® fixation screws have superior mechanical properties1.
The NOVAMag® fixation screw XS can be used for securing barrier membranes such as the NOVAMag® membrane as well as collagen and PTFE membranes.
During the degradation of the magnesium metal, the metallic structure is transformed into magnesium salts and a small volume of hydrogen gas is released. A small accumulation of the gas may collect around each device and is visible in X-rays1. The release of hydrogen gas might present as a slight swelling of the soft tissues. The magnesium salts keep the original shape and position of the screw until they are resorbed by the body.

Science

Education

Edutainment

Handling

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    To ensure optimal handling of the NOVAMag® membrane and the NOVAMag® fixation screw, botiss has developed a range of NOVAMag® instruments in close cooperation with clinicians.

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    RESORBABLE MAGNESIUM MEMBRANE

    A completely resorbable, biodegradable metal membrane

Contact

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Product Management

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botiss biomaterials GmbH

Hauptstrasse 28
15806 Zossen / Germany
Tel.: +49 33769 / 88 41 985
Fax: +49 33769 / 88 41 986
  1. Ž. P. Kačarević et al., “Biodegradable magnesium fixation screw for barrier membranes used in guided bone regeneration,” Bioact. Mater., vol. 14, no. December 2021, pp. 15–30, Aug. 2022, doi: 10.1016/j.bioactmat.2021.10.036.
  2. P. Rider et al., “Biodegradation of a Magnesium Alloy Fixation Screw Used in a Guided Bone Regeneration Model in Beagle Dogs,” Materials (Basel)., vol. 15, no. 12, 2022, doi: 10.3390/ma15124111.
  3. O. Jung et al., “Biocompatibility analyses of hf-passivated magnesium screws for guided bone regeneration (Gbr),” Int. J. Mol. Sci., vol. 22, no. 22, 2021, doi: 10.3390/ijms222212567.