Zirconia Esthetic Solutions Injection Molding Technology
TAVDental PRECISION. PASSION. PARTNERSHIP
About Us TAV Dental is a division of TAV Medical Ltd. Founded in 1975, Tav Medical combines decades of experience with cutting–edge innovative technologies to deliver a range of quality services and advanced solutions to the medical device market, using injection molding technology. TAV Dental is dedicated to designing and producing top level Y-TZP Zirconia abutments that meet the highest requirements of precision, quality and innovation. Zirconia abutments are the ideal solution to the rising demand for metal-free products. Unique Technology As one of TAV Dental’s leading products, Zirconia abutments line is produced using CIM (Ceramic Injection Molding) technology that replaces the traditional CNC production method.
Why Metal Free is Better? ue to its biocompatibility, colour and its mechanical properties, Zirconia is a most suitable replacement D for metal abutment. The bacterial adhesion, which is important to the process of Zirconia restorations without periodontal problems, was proven satisfactorily low. One main benefit is that no allergic reactions can be expected when using Zirconia. In addition, there is almost no danger of corrosion which is often the problem with metal based abutment. It also boasts of its extraordinary strength and durability capable of lasting for prolonged usage time. Metal free abutments are also resistant to any kinds of acids that may interact with the mouth. TAV Dental manufactures all-in-house Zirconia abutments for dental applications.
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Superior quality & strength
Biocompatible material & allergen-low Excellent anti-friction properties
Natural translucency without metal appearance
L
Advanced solution for total edentulous
H
Zirconia enable perfect aesthetics & superior strength
Allows epithelial cells attachments 2.42 mm
Straight
Abutments Range Cerium standard
H (mm)
L (mm)
Catalog No.
0.50
10
7200019
1
10.50
7200020
2
11.50
7200021
3
12.50
7200022
15° Angulated
Cerium
H (mm)
L (mm)
Catalog No.
H (mm)
L (mm)
Catalog No.
straight
0.50
8.40
7200122
0.50
9.40
7200023
1
9.90
7200024
15°
0.50
8.40
7200118 2
10.90
7200025
3
11.90
7200026
25°
0.50
8.40
7200120
Cerium wide
25° Angulated
Cerium
H (mm)
L (mm)
Catalog No.
H (mm)
L (mm)
Catalog No.
straight
1
9.40
7200123
0.50
8
7200027
1
8.50
7200028
2
9.50
7200029
3
10.50
7200030
15° 25°
1 1
9.20 9.20
7200119 7200121
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Technical Information Yttria partially stabilized tetragonal zirconia (Y-TZP) has become increasingly popular as an alternative high-toughness core material in dental restorations thanks to its biocompatibility and attractive mechanical properties. he polycristalline stability obtained by combining Zirconia with yttrium oxide (Y-TZP) provides an T extremely fine-grained, dense and mechanically optimal structure.
Crystal Structure of TZP Material Properties • Density [g / cm3] 6.08 • Hardness [HV] ~ 1200 ~ 2000 • Bending strength (4-point) [MPa] 800 – 1000/ 350 – 450 • Elasticity module [GPa] approx. 200 • Expansion coefficient [10-6 / K] approx. 10.2 SEM
SEM
Zirconia before sintering
Zirconia after sintering
Static Loading Test A static loading test of 25° angular Zirconia abutments was performed at theTechnion Metallurgical laboratory in Haifa, Israel. Specimen No.
Maximum load (N)
ocation of L failure point
1
811
Abutment bottom
2
727
Abutment bottom
3
746
Abutment bottom
The test results indicate that the average maximum load of the tested structures is 761 N. The static testing according to ISO 14801:2007 was completed satisfactorily.
Static loading test results
Abutment stress/strain Depending on the production mode N 800 700 600 500 400 300 200
injection molding abutment
100
∑
0 1
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2
3
milling abutment
Zirconia Abutments User Manual he device is intended to use as an abutment that is assembled on an implant. A prosthesis T restoration crown is secondarily cemented on the abutment. Indicated for all cemented prosthesis.
Zircon abutment cemented crown procedure: zirconia abutment is selected according to the case characteristics (height, angle, etc.). A Modifications are allowed according the following protocol (generally done at the laboratory) The abutment is screwed into an implant replica; modifications of the abutment must be done by grinding under water irrigation. Recommended turbine speed 300,000 RPM (pressure 2.5-3 bars). All sharp edges resulting from grinding must be polished rounded. When preparing the zirconia abutment, verify that the thickness of the c eramic material is at least 0.7 mm. It is recommended to grind the abutment on grinding handle tool with suitable Zirconia diamond burrs. We recommend to use appropriate grinding and polishing instruments for processing our abutments.
he abutment is screwed at T a recommended t ightening moment: 25-28 Ncm.
Abutment after modification.
or the best aesthetic results it F is recommended to cemented with a composite cement (universal resin cement), According manufacture manual.
Modifying the abutment by adding ceramic to Zirconia A liner shade base can be applied and baked according to the manufacturer's instructions. In order to increase the bond and achieve desired shade, Build and shape the porcelain on the Zirconia abutment according to the porcelain manufacturer's instructions. Use a porcelain with a coefficient of thermal expansion matched to the Zirconia.
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Extraction - Implantation - Immediate loading with TAV Dental Zirconia abutments Pictures by courtesy of Dr. Franck Lasry, private practice, Paris, France.
Case properties No flap surgery. Needs good view of axis. Needs initial stability. Zirconia permits better healing and creeping attachement of gingiva on the abutment. Abutment is torqued at 32 Ncm from the first setting and do not need to be dismounted. Permanent crown is done later on the same abutment.
Two central incisors extracted with periotome
Two implants are inserted Titanium post are used to drive implants in position after drilling sequence. They can be used as a permanent post. In this case, they are removed and replaced by TAV Dental zirconia abutments.
Abutments are adjusted in position
Immediate esthetics with temporary crowns
High speed micromotor and flushing is used to adjust abutments shape and length.
Due to emmergency lab temps could not be done. Two Directa acrylic temp and self curing resin are used. diastema was a special request from the patient.
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TAV Dental Zirconia abutments are screwed with 32 Ncm torque Due to drilling sequence, related with roots axis, one angulated and one straight abutments are used.
Occusal/palatal view Great effort is taken to adjust cervical shape and polishing to prevent periodontal problem. The crowns are NOT cemented to avoid cement irritation under gingiva.
omparison of Epithelial Attachment on C Titanium and Zirconia Abutment Materials . COSGAREA1, A. KOHL2, P. DING3, M. SCHMITTER4, R H.J. STAEHLE3, P. EICKHOLZ5, and B. DANNEWITZ6, Department of Prosthetic Dentistry, University Hospital Cluj-Napoca, Cluj-Napoca, Romania, 2Department of Orthodontics, Clinic for Oral, Dental and Maxillofacial Diseases, University Hospital Heidelberg, Heidelberg, Germany, 3Department of Conservative Dentistry, University of Heidelberg, Heidelberg, Germany, 4 Prosthodontics, University of Heidelberg, Heidelberg, Germany, 5Periodontology, Johann Wolfgang GoetheUniversity Frankfurt/Main, Frankfurt/Main, Germany, 6 Section of Periodontology, Department of Conservative Dentistry Clinic for Oral, Dental and Maxillofacial Diseases, University Hospital Heidelberg, Heidelberg, Germany.
Gene expression of integrin beta 4 (ITG-ß4), integrin alpha 6 (ITG-6) and laminin beta 3 (LAM-ß3), as a subchain of laminin 5, were analyzed by quantitative real-time polymerase chain reaction (qRT-PCR), while expression and secretion of the corresponding proteins were evaluated by indirect immunofluorescence (IIF). Cell adhesion was assessed with a cell-coulter counter; cell spreading and morphology on different surfaces were studied by scanning electron microscopy (SEM). Results: qRT-PCR revealed no difference for the mRNA expression of ITG-ß4 and ITG-6 on both materials.
Objectives: The epithelial interactions with implant abutments seem to be similar to those seen around teeth but may be influenced by the used material. Because of aesthetic demands zirconia is increasingly applied in the past years. However, little is known about the epithelial attachment on this material. Therefore, the aim of this study was to assess the epithelial attachment and growth on different abutment materials in vitro.
In contrast expression level of LAM-ß3 on ZrO2 was increased about 2-fold, but the difference was statistically not significant. In accordance, protein expression of laminin 5 was increased on ZrO2. SEM showed no marked differences in cell morphology but indicated a decreased number of attached cells on ZrO2 compared to Ti. However, this observation could not be confirmed by cell counting after 24h.
Methods: Immortalized human gingival mucosal keratinocytes were cultivated for 24h on titanium (Ti) and zirconia (ZrO2) discs, which were abraded, polished and passivated according to a standardized protocol.
Conclusions: Epithelial cells seem to show a better epithelial attachment on ZrO2 compared to Ti surfaces proven qRT-PCR and IIF. However, the observed differences could not be confirmed statistically.
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Quality Assurance Manufacturing process is carried out in accordance with the most stringent international standards. Quality Assurance and Regulatory systems comply with ISO 9001:2008 and ISO 13485:2003 standards, GMP regulations and CE 0483 approved.
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TAVDental PRECISION. PASSION. PARTNERSHIP
Catalog No. 7500002 Rev. 1
Tav dental
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