A picture of Daniele Rondoni

Daniele Rondoni

Dental Technician | Educator

Born in Savona in 1961, he lives and works in his hometown where he has been the manager and director of his own laboratory since 1982.
He got his Dental Technician Degree at “P. Gaslini” Professional Institute in Genoa in 1979 and still operates in the field of professional training as a teacher and counsellor for the “Scuola Odontotecnica Italiana” (Italian School for Dental Technicians).

 

His career features numerous international professional experiences in Switzerland, Germany and Japan. Visiting professor in Restorative Dentistry, University of Chieti-Pescara.

 

Member of teaching staff for Master in “Restorative Endodontic and Dentistry”, University of Sienna; Particularly devoted to the study of morphology and dental aesthetics, he actively collaborates to the development of materials used for aesthetic dental restoration.

 

He authored the text “Tecnica della Multistratificazione in ceramica” (Ceramic Multi-layering Technique) and a lab manual about the use of composite materials, aimed at establishing working protocols for both indirect technique and composite pressing on metal structures and implants and thus introducing his own method, named “Sistema di stratificazione a durezza inversa” (Inverted Hardness Layering System).

 

He also authored numerous technical articles about aesthetic restoration published both in Italy and abroad. Some of his cases have been published in the volume “Il restauro anteriore conservativo dei denti anteriori” (Conservative Restoration of Anterior Teeth) by Vanini, Mangani, Klimovscaja

 

Other cases he treated have been presented by M.D. Walter Devoto in “Odontoiatria Restaurativa. Procedure di trattamento e prospettive future” (Restorative Dentistry. Treatment Procedures and Future Perspectives). Contributed to “LAYERS, an atlas of composite resin stratification” by Manauta – Salat, Quintessence Publishing.

 

EAED Active Member
IAED Active Member

Replacement of Class II restorations with hybrid-ceramic overlays

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.

 

Une nouvelle formule pour des restaurations monolithiques de longue portée esthétiques

Par le Dr Daniele Rondoni

 

D‘habitude, le potentiel esthétique d‘un matériau céramique dentaire – en particulier sa translucidité – peut uniquement être amélioré au détriment de la
résistance à la flexion. Le nouveau KATANA™ Zirconia YML de Kuraray Noritake Dental Inc. est différent. Avec sa grande résistance à la flexion de 1 100 MPa dans la moitié inférieure du disque et sa haute translucidité dans la partie supérieure et les zones incisales, il possède un potentiel esthétique élevé et un champ d‘indications illimité comme le montre l‘exemple de cas suivant.

 

Fig. 1. Bridges 4 unités et 6 unités KATANA™ Zirconia YML après usinage et frittage. Une texture naturelle de la surface vestibulaire joue un rôle décisif dans la création de restaurations monolithiques esthétiques.

 

Fig. 2. Les deux bridges sur modèle après stratification ultra-micro avec CERABIEN™ ZR FC Paste Stain (Kuraray Noritake Dental Inc.).

 

Fig. 3. Restaurations teintées et vitrifiées et leur translucidité lors de la transmission lumineuse.

 

SITUATION FINALE

 

Fig. 4. Vue buccale du bridge 6 unités cimenté dans la bouche du patient.

 

Fig. 5. Vue buccale du bridge 4 unités cimenté dans la bouche du patient.

 

Avec ce nouveau type de zircone multicouche, il est possible de produire des restaurations monolithiques esthétiques convenant même à une utilisation dans la zone antérieure. Malgré la gradation de résistance, la flexibilité de conception offerte est élevée, et la haute translucidité dans la zone incisale assure l‘aspect naturel après frittage. La stratification ultra-micro et la vitrification de la surface monolithique suffiront pour obtenir des résultats à la hauteur des attentes de
nos patients.

 

 

Daniele Rondoni | Master Dental Technician (maître-technicien dentaire)


 
Né en 1961 à Savone où il vit et a travaillé depuis 1982 dans son propre laboratoire avec ses collaborateurs. Diplômé de l'école de technique dentaire IPSIA « P. Gaslini » à Gênes en 1979. Il a poursuivi sa formation en participant à des ateliers pertinents de l'école dentaire italienne et a enrichi son expérience professionnelle en Suisse, en Allemagne et au Japon. Depuis 2011, il est formateur chez Kuraray Noritake Dental International.