Biomedical subjects

F Riitano

Publications and source records attributed to F Riitano.

At least 19 recordsLinked to original sources

PubMed2005

Anatomic Endodontic Technology (AET)--a crown-down root canal preparation technique: basic concepts, operative procedure and instruments.

AIM: To illustrate the conceptual basis and the operative procedure of the Anatomic Endodontic Technology (AET) technique and to illustrate the specific instruments used in each phase. SUMMARY: The basic characteristics of the AET technique are reported. The instruments and procedure are described in three phases: coronal access, coronal-middle preparation and apical preparation. In the first phase, correct cavity design is described. In the coronal-middle phase, the use of four stainless steel shaping instruments, powered by a reciprocating handpiece is described, incorporating a brushing-milling action against canal walls. During the apical phase, dedicated apical stainless steel and NiTi hand instruments are used to complete the preparation. The stainless steel apical files are used with a 1/4 turn and withdrawal movement whilst the NiTi are used in 360 degrees rotary motion. KEY LEARNING POINTS: Most current canal shaping techniques do not prepare all the canal walls and can result in over-enlargement in some areas. AET defines three regions of the canal: coronal (from the cavo-surface of the access cavity), coronal-middle, and apical. Coronal-middle instrumentation is undertaken with four mechanically driven stainless steel shaping instrument used in brushing-milling action against canal walls. Apical preparation is completed by hand and with the formation of a stop.

Dental Alloys↗

PubMed1990

[New cement filled with hydroxyapatite. Preliminary clinical results].

After histological, scanning-electromicroscope, stereomicroscope and transillumination controls, the clearing technique definitively demonstrated that it's really impossible to empty and entirely fill the endodontic apical extremity inside the correct limit, without running the risk to cause iatrogenesis interferences against periodontal reparation processes. Then also the "tridimensional fill" conception, as a simple "seal by physical push", must be integrated with the conception of root canal sealer materials biocompatibility toward the periodontal tissues. "Bioseal" root canal sealer which is the subject of this research is certainly an example of progress about this objective.

Dental Cements↗

PubMed1990

[Diaphanization. Testing method for endodontic technics].

It's a study about the principal clearing techniques, with a selection of materials and phases of execution. The purpose was to obtain transparency of mineralized structure together with preservation of pulpal contents. From this research a technique has been extracted and positively tested, with great results: a) tridimensional control of alterations pointed out in anatomy after canal preparation; b) measurement of pulpal debris size after instrumentation; c) identification of instruments dark zone; d) measurement of the empty-cleansing capacity of root canal system and the defence from eventual self-made errors, as a result of particular operating techniques, whose comparison is accessible by methodology.

Coloring Agents↗

PubMed1990

[Pulpal-periapical response to canal medication with Ca(OH)2].

This study consisted of biopsies of teeth and root tips removed after Ca(OH)2 therapy. The teeth were clinically intact or exposed to caries, trauma, and/or iatrogenesis. Following the therapy most of the canal walls were clean, but the canals contained varying amounts of pulp tissues, debris and Ca(OH)2 particles. In one case microrganisms were present in the apical part of the canal, but not beyond the foramen. The Ca(OH)2 therapy was efficient for its purpose.

Adult↗

PubMed1990

[Study of canal anatomy using longitudinal sections, castings and diaphanization].

It is well known, that to make a correct root canal treatment, it is indispensable to know perfectly the root canal morphology. The study with the longitudinal sections M.-D. and V.-B., stamps and transparent teeth gives us an unquestionable reality. Specially the V.-B. longitudinal sections, which are impossible to observe in the patient with our Rx, are the most instructives. In spite many authors have illustrated this anatomy (Hess, De Deus, Kuttler, Riitano), it seems it has not been sufficiently considered.

Corrosion Casting↗

PubMed1988