Papers by Roland Frankenberger
Den norske tannlegeforenings Tidende
Objectives: Surface quality strongly influences the mechanical strength of dental restorative mat... more Objectives: Surface quality strongly influences the mechanical strength of dental restorative materials by a specific surface flaw population. Perfect polishing is thus a highly recommended clinical procedure to ensure maximum mechanical performance. Dental restorations are commonly exposed to masticatory loads much lower than their short time fracture strength. Surface microcracks can grow under subcritical fatigue loads resulting in premature failure of a restoration. This study was conducted to discuss the relevant parameters on ceramic strength and degradation over time. The aim was to correlate surface roughness, fracture strength, toughness and degradation behavior by slow crack growth with the results of a prospective clinical trial. The fracture strength
The journal of adhesive dentistry, 2018
Deutsche zahnärztliche Zeitschrift, 1998
The journal of adhesive dentistry, 2019
status: publishe
Aim: To report an uncommon case of an extraoral sinus tract of the submandibular region caused by... more Aim: To report an uncommon case of an extraoral sinus tract of the submandibular region caused by a molar in the mandible (tooth 47). Case report: Tooth 47 presented with an insufficient coronal restoration and an absence of pain and discomfort to pressure and palpation in the periapical region. Based on oral inspection and radiographic examination, a pulp necrosis of tooth 47 was diagnosed, which had resulted in a cutaneous sinus tract. The persistent purulent drainage of the sinus tract in the submandibular region ceased during the successful root canal treatment of tooth 47. The root canal was irrigated with copious rrigant (3% sodium hypochlorite, 0.9% sodium chloride, 2% chlorhexidine) and several intracanal calcium hydroxide dressings. Conclusion: In the presented case it was observed that it is challenging to diagnose a cutaneous draining sinus tract of endodontic origin. Thus, treatment of skin lesions of the face, and neck odontogenic infections should always be considered....
Restoration of teeth suffering molar incisor hypomineralization (MIH) is problematic due to both ... more Restoration of teeth suffering molar incisor hypomineralization (MIH) is problematic due to both micromorphological changes of tooth hard tissues and pain history of respective children. A new MIH-treatment need index (MIH-TNI) supports the adequate treatment of the defective teeth. Direct restorations give the possibility to safe sound tooth structure and to isolate teeth with hypersensitivity. Materials under focus are glass ionomer cements for temporary restoration and adhesively applied resin composite for definitive treatment.
The journal of adhesive dentistry, 2020
Los tratamientos odontologicos con laser se utilizan con exito en cirugia, endodoncia y periodonc... more Los tratamientos odontologicos con laser se utilizan con exito en cirugia, endodoncia y periodoncia para mejorar tanto la comodidad del paciente como los resultados del tratamiento. La eficacia del laser depende fundamentalmente de la manera en que los tejidos absorben la radiacion electromagnetica. El grado de absorcion difiere significativamente en las trea areas de aplicacion mencionadas. La longitud de onda y la potencia del laser desempenan un papel importante en ello. Hasta ahora, los diodos laser terapeuticos utilizados en odontologia solian disponer de una longitud de onda entre 810 y 980 nm. El desarrollo de un diodo laser en el rango de longitudes de onda azules (445 nm) puede ofrecer un buen acoplamiento de energia en las celulas y tejidos pigmentados, en combinacion con una escasa absorcion de agua, con lo que cabe esperar un mayor rendimiento de corte en los procedimientos quirurgicos y una descontaminacion profunda en los tratamientos periodontales y endodonticos. En e...
The journal of adhesive dentistry, 2020
2.379 (Journal Impact Factor) – 2.665 (5-year Journal Impact Factor) – 3.6 (CiteScore) – 1.231 (S... more 2.379 (Journal Impact Factor) – 2.665 (5-year Journal Impact Factor) – 3.6 (CiteScore) – 1.231 (SNIP / Source Normalized Impact per paper) – 1.046 (SJR / SCImago Journal Rank) – these are the fundamental specific numbers of our journal related to bibliometric assessment in the present year. As we have mentioned regularly in the past,1,4 the development of these numbers has been positive during the last years, and in 2020, we achieved another Journal Impact Factor (JIF) all-time high of 2.379 for the year 2019. The Journal Impact Factor is defined as a scientometric index that reflects the average annual number of citations that articles published in a given journal received in the last two years – so only when an author is cited early does it really have an impact here. Although a certain amount of criticism exists,3 the JIF is nevertheless frequently used as proxy for the relative importance of a journal within its field as well as interdisciplinarily, mainly due to the fact that i...
Deutsche zahnärztliche Zeitschrift, 1999
The journal of adhesive dentistry, 2017
Purpose: To provide a brief overview of the diagnosis, epidemiology, etiology and clinical manage... more Purpose: To provide a brief overview of the diagnosis, epidemiology, etiology and clinical management of dentin hypersensitivity, to discuss technical approaches to relieve sensitivity, with special emphasis on dentin tubule occlusion and the clinical evidence for efficacy of desensitizing toothpastes based upon this approach, and to summarize the science behind a new dentifrice technology, based upon arginine and calcium carbonate, and the clinical evidence which proves that it delivers both instant and lasting relief of dentin hypersensitivity. Results: Clinical studies have shown that a new toothpaste, containing arginine and calcium carbonate (known as Pro-Argin technology) with 1450 ppm fluoride, offers clinically proven instant and lasting relief of dentin hypersensitivity. Three 8-week clinical studies have shown that this new toothpaste provides statistically significantly superior efficacy in reducing sensitivity to market leading desensitizing toothpastes containing 2% pot...
The journal of adhesive dentistry, 2019
status: publishe
The journal of adhesive dentistry, 2017
In one of our previous editorials, we highlighted the meaning of true minimally invasive restorat... more In one of our previous editorials, we highlighted the meaning of true minimally invasive restorative dentistry. It consists of excavation, preparation, longevity, and restoration repair. Again, minimal intervention does not (solely) mean drilling smaller holes – it already starts during excavation. When an aggressive excavation mode is applied in an 18-year-old, followed by pulp exposure and finally the most beautiful endodontic treatment ever, do you think this individual tooth will still be in place when the patient is 60? The best and most successful endo treatment is still to maintain the pulp complex vital, which guarantees a maximum of biomechanically stable, hard tooth tissues. For many decades now, one of the fundamental jobs of dentists all over the world has been caries excavation. Following tradition, conventional treatment of carious lesions means complete removal of decayed tissue and subsequent restoration. So far, so good. However, when we stick to that tradition duri...
Clinical Oral Investigations, 2020
Purpose In a combined in vitro/in vivo approach, tunnel vs. box-only resin composite restorations... more Purpose In a combined in vitro/in vivo approach, tunnel vs. box-only resin composite restorations should be evaluated using thermomechanical loading (TML) in vitro and a restrospective clinical trial in vivo. Materials and methods For the in vitro part, box-only and tunnel cavities were prepared in 32 extracted human third molars under simulated intraoral conditions in a phantom head. Specimens were randomly assigned to four groups (n = 8; 16 box-only/16 tunnel) and received bonded resin composite restorations with Amelogen Plus (box A/tunnel A) or lining with Ultraseal and Amelogen plus (box B/tunnel B) both bonded using PQ1 (all Ultradent). Specimens were subjected to a standardized aging protocol, 1-year water storage (WS) followed by TML (100,000 × 50 N; 2500 × + 5/+ 55 °C). Initially and after aging, marginal qualities were evaluated using replicas at × 200 magnification (SEM). For the corresponding in vivo observational study, 229 patients received 673 proximal resin composite...
Kinder- und Jugendmedizin, 2008
ZusammenfassungDie Sanierung von kariösen Milchzähnen spielt in der Bundesrepublik Deutschland na... more ZusammenfassungDie Sanierung von kariösen Milchzähnen spielt in der Bundesrepublik Deutschland nach wie vor eine untergeordnete Rolle. Dies ist umso erstaunlicher, da für die Füllungstherapie in den letzten Jahren erfolgreiche Konzepte vorgestellt wurden. Neue Techniken und Materialien mit verbesserten ästhetischen und werkstoffkundlichen Eigenschaften ermöglichen eine defektorientierte und minimalinvasive Therapie auch in der ersten Dentition. Aufgrund der positiven klinischen Ergebnisse gelten Kompomere heute für die Füllungstherapie im Front- und Seitenzahnbereich des Milchgebisses als Mittel der Wahl. Je nach Mitarbeit der Kinder und der Defektgröße muss auch an eine alternative Versorgung gedacht werden. Bei größeren Defekten sollten Milchzähne jedoch mit konfektionierten Kronen versorgt werden. Bei schlechter Compliance sollten Glasionomerzemente der adhäsiven Versorgung vorgezogen werden, um zumindest Zeit zu überbrücken.
Clinical oral investigations, 2018
The objective of this study is to evaluate the effects of treatment modalities on titanium surfac... more The objective of this study is to evaluate the effects of treatment modalities on titanium surface characteristics and surrounding tissues. Eighteen participants each had four titanium healing caps (HC) attached to four newly inserted implants. After healing, each HC was randomly assigned to either (1) titanium curettes (TC), (2) stainless steel ultrasonic tip (PS), (3) erythritol air-polishing powder (EP), or (4) only rubber cup polishing (CON). Probing depths (PD), bleeding on probing (BOP), matrix metalloproteinase 8 (MMP-8), and periopathogens were recorded before and 3 months following instrumentation. After final assessments, HCs were removed, cleaned, and subjected to (a) bacterial colonization (Streptococcus gordonii, 24 h; mixed culture, 24 h) and (b) gingival fibroblasts (5 days). HC surfaces were analyzed with a scanning electron microscope (SEM). No significant differences between the groups were evident before or after instrumentation for PD and BOP (except TC showed a ...
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Papers by Roland Frankenberger