429 Too Many Requests

LAMINATE VENEER RESTORATION
USING LITHIUM DISILICATE

WITH PANAVIA™ Veneer LC (Clear)
Case by Yohei Sato (DMD, PhD) and Keisuke Ihara (CDT)

Fig. 1 The patient visited would like to have the a aesthetics
of the maxillary right and left lateral incisors improved.

Fig. 2 A silicon guide fabricated from a diagnostic wax model
was applied and the necessary clearances were determined.

Fig. 3 Since the lateral teeth are microdonts, the
preparation of each abutment was completed by simply
exposing a fresh enamel surface to be covered with
laminate veneers.

Fig. 4 A layer of porcelain was applied on the lithium
disilicate substrate, to complete the laminate veneers.

Fig. 5 The veneer was conditioned according to the
prosthesis‘ IFU. After trial fitting, the intaglio surface of the
laminate veneer was cleaned with KATANA™ Cleaner.

Fig. 6 CLEARFIL™ CERAMIC PRIMER PLUS was applied and
dried to prime the restoration.

Fig. 7 The preparation was cleaned with KATANA™ Cleaner.
Applied and rubbed for more than 10 seconds. Then, it
was washed off sufficiently (until the cleaner color had
completely disappeared), and dried with compressed air.

Fig. 8 K-ETCHANT Syringe was applied and left for 10
seconds before water-rinsing and compressed air-drying.

Fig. 9 PANAVIA™ V5 Tooth Primer was applied and left for 20
seconds before mild compressed-air drying.

Fig. 10 PANAVIA™ Veneer LC Paste was applied to the
intaglio surface of the laminate veneer.

Fig. 11 The laminate veneer was seated and the fit
checked. Then, the excess cement was tack-cured (not
more than 1 second at each point) and removed. Finally,
the restoration was light-cured and finished.

FINAL SITUATION

Fig. 12 The laminate veneer restorations one month after
placement. The morphology and color of the right and
left lateral incisors have been improved, providing a good
balance to the entire anterior dentition.

LAMINATE VENEER RESTORATION
USING KATANA™ Zirconia STML

WITH PANAVIA™ Veneer LC (Clear)
Case by Yohei Sato (DMD, PhD) and Keisuke Ihara (CDT)

Fig. 1 The patient was referred by an orthodontist. The main
complaints were improper aesthetics of the teeth due to dark
triangles betwen the teeth and incisal wear.

Fig. 2 On the basis of the pre-treatment diagnosis using
a mockup, the teeth were prepared, with keeping in mind
that the enamel should be preserved to the maximal extent
possible.

Fig. 3 A fixation retainer was present at the palatal side,
making it difficult to take coventional silicon impressions.
Therefore, an intraoral scanner was used.

Fig. 4 A layer of porcelain was applied to each KATANA™
Zirconia STML laminate veneer to complete the restorations.
The inner surface of each restoration was sandblasted, being
careful to prevent chipping.

Fig. 5 After trial fitting, bonding inhibiting substances as
blood and saliva were removed using KATANA™ Cleaner.

Fig. 6 CLEARFIL™ CERAMIC PRIMER PLUS was applied and
dried using compressed air.

Fig. 7 The surface of each tooth was cleaned and treated
with K-ETCHANT Syringe for 10 seconds before washing it
away with water and drying with compressed air.

Fig. 8 PANAVIA™ V5 Tooth Primer was applied and left f

Fig. 9 PANAVIA™ Veneer LC Paste was applied and the
laminate veneers were seated. For this case, we placed six
veneers during one session.

Fig. 10 The unpolymerized excess paste was removed with
a brush according to the wet clean-up technique.

Fig. 11 The result after final light curing. Since the excess
cement was easily removed, there were almost no cement
residues.

FINAL SITUATION

Fig. 12 Result one month after placement of the laminate
veneer restorations. The marginal gingiva has been improved
thanks to the good fit of the laminate veneer restorations.

Case by CDT Daniele Rondoni

When planning to replace Class II restorations, many things need to be considered. In order to select the most appropriate restorative technique and preparation design, it is essential to evaluate the amount and state of the remaining tooth structure, first. After repeated restoration replacement or in teeth originally restored with amalgam, for example, the remaining walls and cusps are often weakened and prone to fractures and cracks. When the cavity walls appear to be too thin or the structure is weak at the time of restoration replacement, it may be better to remove walls and cusps and opt for indirect adhesive restorations (overlays) instead of direct composite restorations. Due to favourable material properties – in particular a high flexural and compressive strength while being gentle to the opposing dentition and not too rigid for the surrounding tooth structures – we often opt adhesive restorations made of KATANA™ AVENCIA™ Block in those situations.

The following clinical case is used to describe the replacement of two composite restorations with overlays made of the innovative hybrid ceramic material.

Fig. 1. Initial clinical situation with composite restorations on the second premolar and first molar in need of replacement. The tooth structure particularly of the first molar was weak, with the distobuccal cusp already fractured.

Fig. 2. Prepared tooth structure ...

Fig. 3. Restorations milled from a KATANA™ AVENCIA™ Block after high-gloss polishing and characterization.

Fig. 4. Finalized restorations on a resin model.

Fig. 5. Adhesively cemented restorations in the patient’s mouth.

FINAL SITUATION

Fig. 6. Treatment outcome with a nice transition from the tooth structure to the restoration.

Dentist:

DANIELE RONDONI, MDT

Born in Savona in 1961 where he lives and has worked in his own laboratory since 1982 with his collaborators. Graduated from the dental technician school IPSIA “P. Gaslini” in Genoa in 1979. He continued his education by attending relevant workshops for the “Italian dental school“ and broadened his professional experience in Switzerland, Germany and Japan. Since 2011 Kuraray Noritake Dental International Instructor.

Case by Dr. Jusuf Lukarcanin

Restoring posterior cavities is a standard task we perform virtually every day. Yet, it is a challenging procedure as access to the affected teeth is often limited. This fact complicates many steps from working field isolation to material application and sculpting. By streamlining procedures and establishing protocols that are followed every time, it is possible to achieve predictable outcomes even in difficult situations, as shown below.

Fig. 1. Class II cavity in a second molar after caries removal and cavity preparation.

Fig. 2. Working field isolation.

Fig. 3. Application of adhesive (e.g. CLEARFIL S³ BOND PLUS) into the cavity.

Fig. 4. Build-up of the proximal wall with CLEARFIL MAJESTY™ ES-2 Classic (Kuraray Noritake Dental Inc.) in the shade A2.

Fig. 5. Build-up of the dentin core using the incremental technique with CLEARFIL MAJESTY™ ES-2 Premium in the shade A2D.

Fig. 6. Contouring of the occlusal enamel layer made of CLEARFIL MAJESTY™ ES-2 Premium in the shade A2E.

Fig. 7. Polishing of the restoration with Twist DIA for Composite.

FINAL SITUATION

Fig. 8. Treatment outcome.

Dentist:

DR. JUSUF LUKARCANIN

Dr. Jusuf Lukarcanin is a Certified Dental Technician (DCT) and a Doctor of Dental Science (DDS). He studied dentistry at the Ege University Dental Faculty in Izmir, Turkey, where he obtained a Master‘s degree in 2011. In 2017, he received a Ph.D. degree from the Department of Restorative Dentistry of the same university. Between 2012 and 2019, Dr. Lukarcanin was the head doctor and general manager at a private clinic in Izmir. Between 2019 and 2020, he worked at Tinaztepe GALEN Hospital as a Restorative Dentistry specialist, between 2020-2022 he worked at MEDICANA International Hospital Izmir as a Restorative Dentistry specialist. Currently he is an owner of a private clinic for aesthetics and cosmetics in Izmir.

Compact, time-saving and aesthetic

How many different shades of composite do you need to create appealing restorations in virtually every clinical situation? If you opt for “CLEARFIL MAJESTY™ ES-2” Universal shade concept, a few shades will do the trick.

With wonderful support of our internationally recognized key opinion leaders, we have prepared a Clinical Case brochure of “CLEARFIL MAJESTY™ ES-2” Universal for you. The brochure highlights a variety of clinical cases in the anterior and posterior region to show the all about excellent properties of our latest composite. Let the pictures speak for themselves!

Click here to view. Enjoy!

Start Reading: Special MAJESTY ES-2 Universal - Clinical Cases Brochure

Case by Dr. Nicola Scotti

When restoring posterior teeth with resin composite, functional aspects such as tight and anatomically correct proximal contacts and a naturally shaped occlusal surface that is wear-resistant and antagonist-friendly are even more important than a perfect optical integration. This is why every dental practitioner should avoid spending a lot of time on shade selection in these cases and focus on the factors that have an impact on the reliability and longevity of the restoration. Great support in accomplishing this task is offered by CLEARFIL MAJESTY™ ES-2 Universal, a resin composite with a single universal shade (U) for the posterior region that eliminates the need for shade taking and selection. At the same time, it offers good marginal adaptation, low shrinkage stress and high wear resistance needed for great long-term results.

Fig. 1. Initial situation with a wide primary carious lesion in the distal aspect of the second premolar.

Fig. 2. Premolar after isolation of the working field with rubber dam, caries excavation and cavity preparation.

Fig. 3. Placement of a sectional matrix and a wedge to optimize the fit. Both are held in place with a separation ring, which increases the interproximal space and hence ensures tight, anatomically correct proximal contacts.

Fig. 4. Build-up of the proximal wall with CLEARFIL MAJESTY™ ES-2 Universal (U shade) following selective enamel etching with phosphoric acid (K-ETCHANT Syringe) and bonding with CLEARFIL™ SE Bond.

Fig. 5. A thin layer of flowable composite (CLEARFIL MAJESTY™ ES FLOW High) applied to the cavity floor to act as a resin coat.

Fig. 6. Restoration completed with CLEARFIL MAJESTY™ ES-2 Universal (U shade). While the universal shade composite blends in very well with the surrounding tooth structure, the natural look is completed by adding a tiny bit of brown tint to the fissure.

Fig. 7. Treatment outcome immediately after rubber dam removal. The proximal contact is tight and the occlusal anatomy well-shaped for the patient’s individual masticatory dynamics. The margin of the restoration is virtually invisible, while the buccal cusp appears lighter due to dehydration of the natural tooth structure.

FINAL SITUATION

Fig. 8. Treatment outcome after two months.

Conclusion

The present case demonstrates that the selected composite is well-suited for simplified restoration procedures in the posterior region. The material handles well, offers the same mechanical properties as other materials from the CLEARFIL MAJESTY™ ES-2 series and blends in harmoniously with the surrounding structures without being too translucent. This way, it is possible to waive the shade-taking process without compromising the treatment outcome. The time saved in this context may be spent on functional aspects – or even on another patient.

Dentist:

DR. NICOLA SCOTTI

Case by MDT Daniele Rondoni and Dr. Enzo Attanasio.

Veneers made of zirconia? In some cases, like the one presented below, monolithic zirconia veneers may be an option. Reasons for selecting a latest-generation zirconia such as “KATANA™ Zirconia” YML include its very high translucency and a wall thickness of only 0.3 to 0.4 mm supporting minimally invasive tooth preparation. Due to a highly automated production procedure, the manual effort involved may be reduced, while highly aesthetic outcomes are possible.

Fig. 1. Initial situation: Young female patient with misshaped and misaligned maxillary incisors. Digital smile design is used to reveal the ideal proportions and positions of the anterior teeth.

Fig. 2. Ideal tooth proportions and positions displayed over a picture of the teeth after orthodontic treatment and the creation of a mock-up. The positions are ideal and the tooth shapes obtained with the mock-up only need some minor adjustments.

Fig. 3. Facial view of the patient with the planned veneers blended in.

Fig. 4. Guided tooth structure removal with the aid of a silicone index. The minimum wall thickness of the selected material – “KATANA™ Zirconia” YML – is 0.4 mm.

Fig. 5. Matched digital impressions of the maxilla and mandible taken after tooth preparation.

Fig. 6. Monolithic restoration made of “KATANA™ Zirconia” YML placed on the resin model after the 7-hour final sintering.

Fig. 7. Lateral view of the master cast with the six veneers individualized with the liquid ceramic system CERABIEN™ FC Paste Stain.

Fig. 8. Tooth-like translucency of the veneers on the model.

Fig. 9. Intra-oral try-in with two different shades of the PANAVIA™ V5 Try-in Paste: A2 is used in the right and Clear in the left quadrant. It was decided by the dentist to use A2 shade.

Fig. 10. Lateral view of the cemented veneers. The result is a natural surface texture, which contributes to a natural appearance of the restorations.

Fig. 11. Frontal view of the veneers in place.

Fig. 12. Treatment outcome immediately after rubber dam removal.

FINAL SITUATION

Fig. 13. Treatment outcome with healthy soft tissues two weeks after treatment.

Fig. 14. Gums are healthy and the restorations show a great optical integration with the adjacent posterior teeth.

Dentists:

Case by Adham Elsayed

If we ask dental patients what they expect from direct restorative treatments, they will most probably mention a quick procedure – as nobody wants to sit in a dental chair for a long time – and highly aesthetic outcomes. Reducing the treatment time is also something every dental practitioner should strive for, as their own time is the most precious asset they have. Fortunately, saving time becomes easy when appropriate high-quality materials and techniques are selected, as demonstrated using the following patient case.

The patient presented with several small carious lesions in the lower anterior region. In order to save time without compromising the quality of the outcomes, it was decided to opt for a simultaneous direct treatment approach involving the use of a universal adhesive and a universal restorative with a streamlined shade offering. It consists of two shades for the anterior region, which are typically applied in a single-shade approach and have optimized optical properties that allow for a smooth optical integration. The images shown below speak for themselves…

Fig. 1. Initial situation. Several caries lesions are detected on the lower anterior teeth.

Fig. 2. Situation after placement of rubber dam for moisture control.

Fig. 3. Appearance of the teeth following caries removal.

Fig. 4. Application of CLEARFIL™ Universal Bond Quick.

Fig. 5. Labial view of the final restorations produced with CLEARFIL MAJESTY™ ES-2 Universal (UD) before finishing and polishing.

FINAL SITUATION

Fig. 6. Final situations after rubber dam removal.

Dentist:

Dr. Adham Elsayed
Clinical and Scientific manager, Kuraray Europe GmbH, Hattersheim, Germany.

Case by Dr. Kristine Aadland.

Fig. 1. Preparation.

The patient’s old PFM bridge (shown here) was removed, and the existing preps for teeth #6 and #8 were modified with a medium chamfer with smooth and rounded edges to accommodate a 3-unit KATANA™ Zirconia bridge. There was no abutment for tooth #7, as that space serves as the pontic. Tooth #9 was similarly prepared to receive a single-unit KATANA™ crown.

Fig. 2. Define Restorations.

To begin, each restoration type is defined in the CEREC software, as the design mode (Biogeneric Individual), material type (KATANA™ Zirconia Block), and milling device (CEREC MC XL).

Fig. 3. Digital Impression.

A digital impression of the upper arch was performed using CEREC Primescan.

Fig. 4. Restoration Design.

The patient did not like the size of her centrals and wanted them smaller. She also didn’t like that her smile was slanted/canted. While designing, it really helps to use the patient’s old smile as a reference. This is why I used Bioindividual when designing the restorations, and added a BioCopy folder in the acquisition screen. I can ghost over the previous smile and readily see where I am.

Fig. 5. Restoration Design: Occlusal.

The BioCopy design function is also utilized to ensure a correct occlusal profile.

Fig. 6. Milling.

A KATANA™ Zirconia Block for bridge (14Z L) was used for the 3-unit bridge, and a KATANA™ Zirconia 12Z single-unit block was used for the single crown. The bridge block mills out in about 18 minutes, which is the fastest-milled chairside bridge block currently available.

Fig. 7. Characterization & Sintering.

Kuraray Noritake CERABIEN™ ZR FC Paste Stain and Glaze Kit was used for characterizing. The colors are very natural and it is not simply a metal oxide like other stains, but actually adding porcelain, giving the restorations more vitality. The oven cycle is quick at approximately 10 minutes, which means multiple fires are easy to do without excess time.

Fig. 8. Seating & Final Smile.

PANAVIA™ SA Cement Universal and CLEARFIL™ Universal Bond Quick were used for cementation and bonding. I love the ease of use and clean-up with PANAVIA™ SA Cement Universal, and its MDP monomer creates a strong chemical bond to the tooth structure and zirconia. CLEARFIL™ Universal Bond Quick has a quick technique without reducing bond strengths, releases fluoride and has a low film thickness. I simply rub CLEARFIL™ Universal Bond Quick into the tooth for a few seconds and air dry. There is no need to light-cure, since it cures very well with PANAVIA™ SA Cement Universal. The patient was very happy with the results. She loved that she no longer saw metal margins, and her smile was much more uniform and lifelike.

DR. KRISTINE AADLAND

Using KATANA™ Cleaner and PANAVIA™ SA Cement Universal

Case by Dr. Richard Young

Fig. 1. HF etch and try-in complete.

Fig. 2. Dispense KATANA™ Cleaner into mixing well.

Fig. 3. Rub for 10 seconds, then rinse and dry.

Fig. 4. Rub for 10 seconds, then rinse and dry. KATANA™ Cleaner contains MDP based surfactant that breaks down blood and saliva - removing contamination.

Fig. 5. Apply cement directly onto restoration (glass ceramic, zirconia, metal or composite resin).

Fig. 6. PANAVIA™ SA Cement Universal contains MDP and LCSi monomers, providing for durable bonding even to lithium disilicate restorations.

Fig. 7. Tack-cure for 2-5 seconds.

Fig. 8. Tack-curing results in nice gel-like-state and excess is removed with ease.

FINAL SITUATION

Fig. 9. Final situation.

Dentist:

DR. RICHARD YOUNG

Case by Keisuke Ihara, RDT, Yohei Sato, DMD, PhD and Tsurumi University School of Dental Medicine.

MINIMAL CUT-BACK DESIGN

Accommodate esthetics and function, achieves natural color and surface texture due to thin porcelain layer.

Step 1.  Teeth preparation.

Step 2.  Inner crowns were placed on the abutments.

Step 3.  Zirconia Frame (KATANA Zirconia HTML A1) cut-back designed for incisal frame.

Step 4.  Application of Cerabien™ ZR (CZR) for making base color and firing.

Step 5.  Application of Internal Stain and firing.

Step 6.  The final restoration and inner crown parts.

Step 7.  Post-operative view.