Clinical Cases

See how Coltene products helped many professionals in important dental operations, bringing satisfaction to their customers. Has a case to tell us too? Send it to us by clicking the link above.

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Pulp and non-suppurative necrosis apical chronic periodontitis
Prof. Dr. Ricardo Caicedo

Exploração inicial dos canais com as limas manuais #10K, #15 K, #20K, # 25K, #30K
Determinação do Comprimento de Trabalho
Instrumentação Rotatória com Sistema Hyflex-CM
Canal Mesio-Vestibular: 25.08, 20.04, 20,06, 25.04 e 30.04, 40.04
Abertura de orifício e Alargamento Apical
Obturação com GuttaFlow, Técnica de Cone único com Gutta Percha e Para Core

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Clinical case 01 with the rotary system Hyflex-CM
Prof. Maeli Martini Parise

– Removal of the gutta-percha with Gates Glidden burs nº 01, 02 and 03
– Removal of the gutta-percha remaining with the files Type H nº 15, #20 and #25
– Cervical preparation with the instrument HyFlex “25.08”
– Determination of the Work Length
– Rotary Instrumentation: Hyflex-CM System
– Single Canal: 25.08, 20.04, 20.06, 25.04, 30.04 and 40.04
– Watering with Sodium Hypochlorite 2.5% + P.U.I. (Ultrasound)
– Extravasated medication in the region of the periapical lesion: ULTRACAL
– Filling with cement AH Plus and Technique of Single-Cone

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Clinical case 02 with rotary system Hyflex-CM
Prof. Fernando dos Reis

The protocol below was followed:

– Initial exploration of the canals with the manual files #08 K, #10 K, #15 Flex and # 20 up to 03 mm below the apex of the Apparent Length of the Tooth (ALT)
– Cervical preparation with the instrument HyFlex “25.08” and localization of the canal MV2 (4th canal)

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Clinical case with Hyflex-CM: Lower first molar (Tooth 46)
Prof. Fernando dos Reis

The protocol below was followed:

– Initial exploration of the canals with the manual files #08 K, #10 K, #15 Flex and # 20
– Flex up to 03 mm below the apex of the Apparent Length of the Tooth (ALT)
– Cervical preparation with the instrument HyFlex “25.08” (See Image nº 3)
– Determination of the Work Length
– Rotary Instrumentation: Hyflex-CM System

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Impact of heat treatments on the fatigue resistance of different rotary nickel-titanium instruments
Lígia Carolina Moreira Braga
Ana Cristina Faria Silva
Vicente Tadeu Lopes Buono
Maria Guiomar de Azevedo Bahia

X-ray energy-dispersive spectroscopy analysis showed that, on average, all the instruments exhibited the same chemical composition, namely, 51% Ni–49% Ti. The PV, TYP, and HF files exhibited increased transformation temperatures. The PTU F2, PV, and TYP files had similar D3 values, which were less than those of the EW and HF files. The average number of cycles to failure values were 150% higher for the TYP files compared with the PV files and 390% higher for the HF files compared with the EW files.

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Alginates of premium quality
Prof. Hélio Dutra

Hydroprint or Chromaprint are indicated by other company (VOCO) due to their accuracy and dimensional stability in the use of the Die Silicone/Modellsilikon (silicone for construction of working models, replacing gypsum), material recently introduced in Brazilian market.

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Influence of delayed pouring on irreversible hydrocolloid properties
Stéfani Becker Rodrigues
Carolina Rocha Augusto
Vicente Castelo Branco Leitune
Susana Maria Werner Samuel
Fabrício Mezzomo Collares

The aim of this study was to evaluate the physical properties of irreversible hydrocolloid materials poured immediately and after different storage periods. Four alginates were tested: Color Change (Cavex); Hydrogum (Zhermack); Hydrogum 5 (Zhermack); and Hydro Print Premium (Coltene). Their physical properties, including the recovery from deformation (n = 3), compressive strength (n = 3), and detail reproduction and gypsum compatibility (n = 3), were analyzed according to ANSI/ ADA specification no. 18. Specimens were stored at 23°C and humidity and were then poured with gypsum immediately and after 1, 2, 3, 4, and 5 days. The data were analyzed by two-way analysis of variance (ANOVA) and Tukey’s test at p < 0.05. All of the alginate impression materials tested exhibited detail reproduction and gypsum compatibility at all times. Hydro Print Premium and Hydrogum 5 showed recovery from deformation, as established by ANSI/ADA specification no. 18, after 5 days of storage. As the storage time increased, the compressive strength values also increased. Considering the properties of compounds’ recovery from deformation, compressive strength, and detail reproduction and gypsum compatibility, irreversible hydrocolloids should be poured immediately.

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Two years of clinical evaluation of composite resin restorations in posterior teeth
Vieira, L.C.C.
Baratieri, L.N.
Lopes, G.C.
Portela, R.
Andrade, C.A.

The purpose of this paper was evaluate, clinically, two restorative systems for posterior teeth (ScotchBond Multi-Uso [SBMU] + Z100 – 3M and Magic Adhesive + FillMagic – Vigodent) when used in restorations Class II (MO, MOD, OD) in molar and premolar teeth. Eighty restorations were performed, and of these, 40 with restorative system SBMU + Z100 and 40 with Magic Adhesive + FillMagic system. The adhesives were applied in accordance with the manufacturer instructions. The restorations were evaluated according to the following criteria: postoperative sensitivity (POS); marginal discoloration (MD); color change (CC); recurrent caries (RC).

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Composite restorations: Anterior teeth
Raphael Monte Alto

Brilliant NG is a universal composite nanohíbrido with pre-polymerized charge, has its distributed particles optimally and is indicated for both front teeth as posterior teeth, in direct or indirect restorations.
Brilliant NG has the exclusive Duo Shade system which allows covering the entire range of VITA shades CLASSICAL with half the number of syringes! Brilliant BG uses unique resin matrix RIO (Optimized Index of light refraction), which increases their mimicry capability with the natural tooth. This “chameleon effect” improves cosmetic result and simplifies selection of color: more color options with fewer syringes.

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Prefabricated composite resin veneers
George Gomes
Jorge Perdigão

The clinical technique described in this paper has the potential for being used routinely to lengthen anterior teeth, to correct malpositioned teeth, to mask discolorations, and to close diastemas.The technique can also be used to restore extensive caries lesions and tooth fractures, and to refurbish large old anterior restorations, especially when other treatment options are out of reach for the patient for financial reasons.

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