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ORIGINAL PROTOCOLS for Advanced Biomimetic Restorative Dentistry - Master core principles for performing direct posterio...
09/10/2026

ORIGINAL PROTOCOLS for Advanced Biomimetic Restorative Dentistry - Master core principles for performing direct posterior resin composite restorations with a focus on replicating natural tooth anatomy. The curriculum covers advanced diagnostic techniques like laser fluorescence and fiber optic transillumination and restorative strategies such as deep margin elevation and the use of short-fiber reinforced composites. Key clinical steps are detailed, including bilaminar shade selection, precise caries removal, the use of oscillating instruments for refined preparation, as well as matrices and separation rings and, of course, gold-standard enamel/dentin bonding step-by-step. Practitioners are guided through essential protocols for isolation, bonding, and layering to ensure functional longevity and structural integrity. Ultimately, the program emphasizes a hands-on approach to mastering the complex histo-morphology of back teeth through modern biomimetic dentistry.

08/19/2026

LED vs. Laser: More Power ≠ Better Curing 🔬🦷

When it comes to light curing, radiant exposure matters—not just irradiance or speed.

For a 2-mm increment of most resin-based composites, approximately 16–24 J/cm² is generally recommended:

Radiant Exposure = Irradiance (W/cm²) × Time (s)

For example:
💡 Regular LED at 1 W/cm² × 20 s = 20 J/cm² - OK
⚡ High-power LED at 3 W/cm² × 3 s = 9 J/cm² - NOT SUFFICIENT
🔬 Laser: 2.5 W/cm² × 1 s = 2.5 J/cm² - NOT SUFFICIENT
🔬 Laser: 2.5 W/cm² × 3 s = 7.5 J/cm² - NOT SUFFICIENT

As seen above, high irradiance must be paired with a shorter exposure time to limit heat generation. The goal isn't simply to maximize power; it is to deliver sufficient energy while controlling temperature and achieving adequate polymerization. 

Lasers also present additional drawbacks, including non-uniform output, narrow spectral emission around 453 nm, and pulsed delivery.

📚 Recent evidence has raised concerns regarding very short exposure times, including:
• Reduced depth of cure and monomer conversion — Giannini et al., Brazilian Dental Journal, 2025
• Reduced bond strength — Vitaliano et al., International Journal of Adhesion and Adhesives, 2026

The takeaway: Don’t confuse high irradiance with adequate radiant exposure. High power can reduce exposure time and help limit heat—but only if enough energy reaches the composite for proper polymerization. 💡

CuringLight DentalLaser Polymerization AdhesiveDentistry OperativeDentistry EvidenceBasedDentistry DentalEducation

Dr. Adriana Ubaldini, I have been blessed by your presence at USC as a visiting scholar in my research lab. And now, we ...
08/19/2026

Dr. Adriana Ubaldini, I have been blessed by your presence at USC as a visiting scholar in my research lab. And now, we are all blessed by this wonderful book, which enlightens us and offers so much perspective. Thank you from the bottom of my heart. It was an honor to write the foreword to this miraculous story.
With all my love!

Dra. Adriana Ubaldini, fui abençoado por sua presença na USC como pesquisadora visitante em meu laboratório. E agora, todos nós somos abençoados por este livro maravilhoso, que nos ilumina e nos oferece tantas perspectivas. Obrigado, do fundo do meu coração. Foi uma honra escrever o prefácio desta história milagrosa.
Com todo o meu amor!

HISTORICAL PERSPECTIVE AND TERMINOLOGY During the 1980s and early 1990s, restorative options were mainly limited to dire...
08/18/2026

HISTORICAL PERSPECTIVE AND TERMINOLOGY During the 1980s and early 1990s, restorative options were mainly limited to direct composite restorations or full-coverage cemented crowns. Indirect bonded restorations, such as veneers, inlays, and onlays, emerged as a more conservative and economical alternative, bridging the gap between these two approaches.

A further step was the development of semi-direct and semi-indirect techniques, which combined chairside and extraoral procedures. Semi-direct restorations are completed in a single appointment, whereas semi-indirect restorations require two appointments and a provisional restoration. Unlike conventional indirect restorations, all laboratory-type procedures are performed in-house, without the need for a dental laboratory.

These techniques are particularly useful when direct restoration is challenging—for example, with large restorations and cervical margins in dentin—but a laboratory-made indirect restoration is not justified or affordable. They are especially effective for large Class I and II restorations on a limited number of posterior teeth, while the extraoral phase allows better control of occlusal and interdental anatomy.

The concept was initially developed for posterior composite inlays and later adapted to anterior veneers. Early CAD/CAM systems also enabled chairside ceramic inlays and onlays. A major development occurred in 2001 with the introduction of CAD/CAM composite resin blocks, which opened new possibilities for semi-direct restorative techniques.

08/10/2026

Is IDS Needed When Doing Zirconia Crowns?

No—not as an absolute requirement. However, for an adhesively cemented crown, Immediate Dentin Sealing (IDS) can be highly advantageous, particularly when a meaningful amount of dentin is exposed or when the preparation has limited retention and resistance form.

The key distinction is between “necessary” and “beneficial.”

When Is IDS Particularly Valuable?

IDS can provide several advantages when restoring teeth with crowns:

Improved bonding potential: Dentin is sealed immediately after preparation, when it is fresh free from contamination.

Protection of the dentin–pulp complex: The adhesive layer reduces dentinal permeability and may help decrease postoperative sensitivity.

Potentially improved bond durability: Sealing the dentin before provisionalization may contribute to a more predictable and durable adhesive interface.

Importantly, the additional bonding provided by IDS can be particularly useful when the preparation has short, tapered walls or otherwise lacks adequate geometric retention and resistance form. In these situations, adhesive cementation can contribute significantly to the retention of the restoration.

IDS can also expand the range of restorative materials that can be used. For example, when using glass ceramics or feldspathic ceramics, which depend more heavily on adhesive bonding for their clinical performance, establishing a predictable adhesive interface with the tooth becomes especially important.

So, Is IDS Necessary for Crowns?

The clinical question is therefore not really:

“Is IDS necessary for crowns?”

Better questions are:

“Do I have exposed dentin that I want to bond predictably and protect before the crown is fabricated?”
"Does the preparation have limited retention or resistance form?"
"Am I using a restorative material that benefits from or requires adhesive bonding?"

If the answer to these questions is yes, IDS makes a great deal of clinical sense. In other words, IDS is not an obligatory step for every crown preparation. Rather, it is a strategic adhesive procedure that becomes increasingly valuable as the case moves toward a more biomimetic approach.

Regarding the case featured in my previous post, a regular flat Mylar strip was used while layering the interdental area...
08/10/2026

Regarding the case featured in my previous post, a regular flat Mylar strip was used while layering the interdental areas.

Different types of matrices can be used. Surprisingly, a rectangle of simple flat Mylar strip can produce very predictable and well-defined contacts. I particularly like creating straight contact “lines” rather than overly convex contact areas.

This helps maximize closure toward the cervical aspect using the “miniwing concept”—designing pyramidal-shaped extensions with a flat vertex at the contact and three triangular surfaces: buccal, lingual, and a concave cervical surface designed to accommodate the papilla.

The goal of gap closure is not simply to create a contact, but to control its position, geometry, and cervical closure in order to achieve more predictable interdental anatomy.

What do you consider the critical aspects of closing a diastema like this one with direct resin composite? I have my own...
08/10/2026

What do you consider the critical aspects of closing a diastema like this one with direct resin composite? I have my own approach, but I’d love to hear yours, especially the sequence and management of the space and shape 😉😉😉...
Done with Inspiro Direct.

08/08/2026

Dental photography is both a technical necessity and a medium for artistic expression. The modern camera has become a kind of “third eye,” allowing clinicians to perceive and document minute anatomical details—such as surface texture, translucency, and optical effects—that are often invisible to the naked eye. In this sense, photography does not simply record what we see; it can actually enhance our ability to see and understand.

I have personally lived through the evolution from analog film to today’s mirrorless digital systems, and I have witnessed how instant visual feedback has transformed the way we practice and communicate. Photography has become an invaluable tool not only for documentation and diagnosis, but also for patient education and communication, as well as for collaboration with laboratory technicians. A well-executed photograph can communicate morphology, color, texture, and esthetic objectives far more precisely than words alone.

Beyond its clinical utility in esthetic dentistry, photography also provides an opportunity to develop observation and artistic sensitivity. It encourages us to pay attention to light, composition, perspective, texture, and emotion—qualities that are equally important when documenting a clinical case or capturing the natural world. For me, photography has always been a way of observing, understanding, and ultimately conveying what I see.

Ultimately, I encourage practitioners to master the fundamentals of lighting and composition not only to improve the quality of their clinical images, but also to sharpen their diagnostic vision and elevate their professional artistry. Learning to photograph well is, in many ways, learning to see better.

Direct resin composite... Lots of work on those line-angles, morphology-driven, always!
08/07/2026

Direct resin composite... Lots of work on those line-angles, morphology-driven, always!

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