Modern Adhesive Composites: From Bonding Strategy to Final Polish

1. Principles of Adhesion

The first lecture introduces current adhesive systems in terms of failures, indications and rationale of use.

The main objectives of this theoretical lecture are:

• Understand the main differences between the types of bonding materials on the market today – the conventional, self-conditioning, and universal
• Learn why, when and how to use these materials
• Examine the advantages of reducing the number of operatives steps.

Duration: 29 min

Principles of Adhesion in Enamel

In the second lecture Dr. Hirata reviews the fundamentals of adhesion: increasing retention and sealing of the interface, modifying the mechanical strength of the material through adhesive systems.

The objectives of this lecture are:

• Learn the composition of enamel and dentin as they come together
• Know the use of phosphoric acid in the inorganic content of dental enamel
• Understand the main differences in adherence.

Duration: 15 min

Class IV Tooth 21 - Video tutorial

This hands-on video describes in full the restorative process of a fractured central (tooth 21), comprising the use of a silicone guide for the palatal index, layering with Ivoclar Vivadent Empress Direct system, with the presence of an opaque halo and area of effect.

Hands-on ref.

• Upper Jaw model + teeth 11, 21, 12, 22
• Replicate this hands-on tutorial on the model quoted above and replicate immediately what you are learning from Professor Ronaldo Hirata.

Duration: 57 min

Class II Tooth 17 - Video tutorial

In this hands-on video Prof. Hirata performs the restoration of a Class II case.

This video allows the participant to get a deeper understanding of:

• What are the best matrix and wedge systems for class II restorations
• How to use these systems, and why opt for them
• Chromatic/achromatic and use of dye for the naturalness of the restoration.

Hands-on ref.

• Upper Jaw model + teeth 16, 17
• Replicate this hands-on tutorial on the model quoted above and replicate immediately what you are learning from Professor Ronaldo Hirata.

Duration: 1 h 12 min

Clinical Demonstration Class II. Part IThis video opens a series of 2 videos portraying a case treated by Prof. Ronaldo Hirata.

The focus of the description offered by this first content involves the removal of the old amalgam-based restoration with a diamond bur, aluminum oxide sandblasting, and rubber dam isolation tricks.

Duration: 12 min

Clinical Demonstration Class II. Part II

This second part of the clinical case introduced in the previous video shows the finalization of the Class II restoration.

In particular, the learner will deepen:

• Cavity prophylaxis and smear layer removal (smear on)
• Selective enamel acid conditioning and self-etching adhesive usage
• Relining procedure with flowable composite
• Sito-specific anatomy of the element 36 (cusps).

Duration: 21 min

Cosmetic Contouring Clinical Demonstration. Part IThis video opens a series of 2 videos pertaining to the same clinical case.

The objective is to show cosmetic conturing best practices in a composite reconstruction case on teeth 11 and 21 with presence of a diastema.

Thanks to this first part of the case presentation the learner is given the possibility to deepen:

• Prophylaxis protocol
• Modified isolation technique
• Waxing procedures
• Step-by-step silicone index creation
• Layering protocol.

Duration: 41 min

Cosmetic Contouring Clinical Demonstration. Part II

This video portrays the second part of the clinical case introduced in the previous content.

The focus switches from the use of silicone guide for palatal wall, opaque halo max. 0.4 mm, to the analysis of the incisal effects, enamel, and contact points with the click technique.

A new technique for pulling the polyester strip is also introduced.

Duration: 10 min

Fracture repair - Clinical Demonstration

This clinical video portrays a case of incisal edge repair on teeth 11 and 21.

The leading causes of failure in fracture restoration are addressed, and the the protocol presented involves:

• Aluminum oxide sandblasting
• Modified isolation
• Selective enamel acid and silane
• Pure adhesive (due to no dentin exposure), finishing and polishing with discs, rubber tips
• Occlusal adjustments.

Duration: 41 min

Dental Hypoplasia - Clinical Demonstration

Understanding the causes of enamel hypoplasia and how to fix it, this is the main objective of this clinical demonstration by Prof. Ronaldo Hirata.

Hypoplasia removal and beveling procedure, rubber dam isolation, total acid etching and universal adhesive system application are discussed.

The protocol presented involves:

• Composite layering technique
• Finishing and polishing with texturing.

Duration: 29 min

Dentin Adhesion

In this theoretical class on dentin adhesion, Prof. Hirata describes the dentin composition, its characteristics and behavior in contact with acid etching.

Objectives of this class:

• Understand the negative and positive aspects of the smear layer
• Know the essential components of adhesives and their indications.

Duration: 36 min

Symmetry Case 1 - Video tutorial

This Hands-On class covers all the steps involved in incisal edge adjustment on two central incisors.

Furthermore, tips concerning mirror areas, edge and fit at proximal contact are shared with the learner.

Hands-on ref.

• Upper Jaw model + teeth 11, 21
• Replicate this hands-on tutorial on the model quoted above and replicate immediately what you are learning from Professor Ronaldo Hirata.

Duration: 25 min

Bulk Flow Part 1 - Video tutorial

This hands-on lecture covers the first part of the section dedicated to Class I restoration with bulk flowalble composite resin.

While a single layer of composite fills the first 4 mm, the last 2 to 3 mm are subject to the final two steps: chromatic and achromatic enamel shading.

Staining technique when approaching cusps is also covered.

Hands-on ref.

• Upper Jaw model + teeth 14, 15, 16, 17
• Replicate this hands-on tutorial on the model quoted above and replicate immediately what you are learning from Professor Ronaldo Hirata.

Duration: 42 min

Bulk Flow Part 2 - Video tutorial

This second section of the section dedicated to Class I restoration hands-on training closes the description of the procols involved in bulk flowalble composite restoration.

Hands-on ref.

• Upper Jaw model + Teeth 14, 15, 16, 17
• Replicate this hands-on tutorial on the model quoted above and replicate immediately what you are learning from Professor Ronaldo Hirata.

Duration: 19 min

Symmetry Case 2 - Clinical Case

This video depicts a clinical case where Professor Hirata puts into practice the adjustments learned in the previous hands-on class on the subject (video #12).

The lecture addresses:

• Incisal edge adjustment, midline and symmetry criteria between the two central incisors
• Mirror areas edge and fit at proximal contact.

Duration: 14 min

Class I Bulk Fill Flowable - Clinical Case

In this clinical case the learner is given the possibility to watch Prof. Hirata as he puts in action the approaches shown in the hands-on video on bulk fill flowable resin application (lecture #13 and #14).

This clinical case allows to deepen:

• Step by step description of isolation and preparation procedures, acid etching and adhesive system application
• Bulk fill flowable application leaving 1.3mm for the final step - enamel chromatic shading
• Occlusal adjustment, finishing and polishing.

Duration: 47 min

Dental Hypoplasia - Clinical Case

• This clinical video offers the learner:a step by step description of the removal of hypoplasia on a lower incisor caused by trauma where microabrasion is not enough to solve the problem
• Indications towards the ideal preparation and how to deal with deep stains without necessarily removing them completely.

Duration: 21 min

Self-etch and universal adhesives

In this class Prof. Hirata discusses the biggest issues in the use and handling of total and self-etching bonding materials.

The composition and the differences between adhesive systems and the characteristics of universal adhesives are presented and thoroughly illustrated.

The objective of this class are:

• Self-etching and universal adhedives case selection
• The ideal protocol to minimize the risk of future failure.

Duration: 27 min

Post-operative sensitivity to cold

This video lecture examines post-operative sensitivity related to margins and enamel.

The learner is brought to examine and understand the causes of sensitivity, how to avoid them running the correct operative protocol, and how to treat it immediately after recognizing the operative failure.

A specific focus is dedicated to long term success rate optimization in adhesive restorations.

Duration: 28 min

Post-operative sensitivity to chewing (Bite sensitivity)

In this lesson Prof. Hirata focuses on masticatory sensitivity.

Adhesive failures and its happening in interfacial areas are analysed, as well as treatment options, techniques and concepts to avoid this problem.

Duration: 19 min

Class I using regular bulk-fill composite - Hands-On Class

This tutorial hands-on video shows a Class I restoration with Bulk Fill Restorative A2 resin on premolars.

The main objectives of this practical lecture are:

• Understanding the advantages of using a single increment of this resin in medium cavities depth, compared to two different bulk composites brandsunderstand the anatomy of lower premolars from the perspective of the conservative and restorative dentistry specialist.
• Hands-on ref.
• Lower Jaw model + Teeth 34, 35, 36, 37
• Replicate this hands-on tutorial on the model quoted above and replicate immediately what you are learning from Professor Ronaldo Hirata.

Duration: 18 min

Peg lateral tooth 12 - Video tutorial

Thanks to this detailed step by step hands-on video lecture the learner will get a deeper, practical understanding of:

• Use of aluminum oxide blasting, acid etching, and adhesive systems conoid lateral incisor treatment
• Use of the palatal index (guide of silicone)
• Layering technique application, opaque halo, effect resin, dentin and enamel
• Interproximal contact with the "click" technique.

Hands-on ref.

• Upper Jaw model + Teeth 11, 12
• Replicate this hands-on tutorial on the model quoted above and replicate immediately what you are learning from Professor Ronaldo Hirata.

Duration: 56 min

Peg Lateral - Clinical Case

In this video lecture Prof. Hirata shows the clinical application of the protocol outlined in the previous hands-on training lecture.

The following topics will be widely discussed:

• The use of aluminum oxide sandblasting, acid etching, and adhesive system
• Resin system technique using KERR premise composite
• Use of the palatal index (silicone guide)
• Layering, opaque halo, resin effect, dentin, and enamel
• Click technique for contact point analysis.

Duration: 13 min

Central diastema - Clinical Case

This video lecture portrays the treatment of a diastema on upper central incisors.

The learner will deepen:

• Use of waxing and absolute isolation
• Enamel surface sandblasting before acid etching and adhesive system application.

Duration: 4 min

Exchange of unsatisfactory restoration with bulk fill Flowable - Clinical Case

This lecture describes thoroughly how to exchange an unsatisfactory restoration with bulk fill flowable composite.

The main learning objectives are:

• How to exchange of unsatisfactory restoration with bulk fill flow resin composites
• Acid selective etching of enamel and self-etching adhesive system application
• Learning the advantages and disadvantages of the technique portrayed
• Occlusal adjustment and polishing.

Duration: 47 min

Posterior teeth regular bulk-fill technique - Clinical Case

This lecture describes thoroughly how to correct two unsatisfactory restorations on teeth 46 and 47.

The focus of the video covers:

• Rubber dam isolation, prophylaxis, selective enamel conditioning, universal adhesive system application
• Use of regular Bulk fills consistency on both teeth
• Occlusal adjustment and polishing.

Duration: 29 min