The purpose of this study was to investigate the marginal precision of computer numeric control-milled frameworks fabricated of grade 4 commercially pure titanium or cobalt-chrome alloy through ...digital technology and to compare them with conventional cast frameworks.
A titanium cast of a mandibular arch with six implant analogs was used as a master. The master cast was measured with a coordinate measuring machine. Fifteen rigid anatomic frameworks were created on the master cast in cast gold alloy and milled in titanium or cobalt-chrome material. The fifteen anatomic frameworks were measured in the same manner as the master cast. While the milled frameworks were measured once, at the end of the milling process, the cast anatomic frameworks were measured twice: immediately after the casting and divesting procedures and again after a technical adaptation procedure. Each anatomic framework was weighed. To compare the measurements obtained from each group of frameworks, descriptive statistics were calculated and one-way analysis of variance was performed, with values considered statistically significant at P < .05.
The mean weight of the cast frameworks was 33.41 g, the cobalt-chrome frameworks weighed 18.12 g on average, and the titanium frameworks averaged 8.7 g. The mean values for three-dimensional deviation of the center point position for each group of frameworks were 261 μm (cast frameworks before adaptation), 49 μm (cast frameworks after adaptation), 26 μm (milled frameworks in cobalt-chrome), and 26 μm (milled frameworks in titanium).
Within the limitations of this in vitro study, absolute passive fit cannot be achieved, regardless of material and fabrication technique. Anatomic milled frameworks fabricated in titanium or cobalt-chrome presented reduced center point deviation compared to cast frameworks. Titanium frameworks weighed less than cobalt-chrome and cast gold alloy frameworks.
Today periodontal health is considered as an integral part of systemic health itself and no longer as a single factor. The literature recognizes that the presence of periodontal disease can represent ...a risk factor for numerous systemic conditions such as heart disease and diabetes. In recent years, we have witnessed a progressive interest regarding the influence exerted by this condition on reproduction, as well as the possible repercussions on conception possibilities. Upon analyzing a limited number of studies available for the correlation between periodontal disease and female infertility, it could be inferred that this condition can be equated to the presence of a real outbreak of infection and therefore exert its influence, not only through bacterial translocation in the bloodstream, causing the systemic dissemination of pathogens, but also through the production of cytokines and immunoglobulins by inflammatory mediators. This situation limits bacterial growth, but it could cause damage to the fetus, to the reproductive system, and could hinder conception attempts. Although further research is needed to better clarify the mechanism underlying the possible correlation between periodontal disease and female infertility, the present article aims to review all the available literature on this topic.
In recent years, interest regarding the influence of gum disease on conception has increased. Since serious gum disease (periodontitis) can be compared to an outbreak of infection, studies suggest that the bacteria that mediate inflammation do not remain confined only to the gum tissue, but can enter the bloodstream and spread, thus spreading the infection and having a whole-body effect. This situation could cause damage to the developing baby, to the reproductive system and could hinder conception attempts. Constant maintenance of oral health is definitely necessary. It is important for the professionals involved (gynecologists, obstetricians, dentists, etc.) to communicate and collaborate on these issues. Dentists could advise on the correct hygienic maintenance not only to pregnant women, but also to those who are planning a pregnancy in order to avoid the occurrence of unfavorable conditions.
The purpose of this work is to describe the treatment of two lateral incisors affected by developmental abnormalities (Oehlers, types I and II) treated respectively through periodontal regenerative ...therapy associated with conservative correction of shape anomaly, and orthograde retreatment.
Both therapies used resulted in complete remission of the initial symptoms and total healing of the lesions present.
“Dens invaginatus” is a dental development malformation that can predispose to the onset of caries, pulpal involvement and periodontal lesions, the treatment of which may require a specialized and often multidisciplinary approach. This malformation should therefore be recognized in time in order to establish effective prevention protocols, when possible, or prevent related consequences generating non-recoverable endodontic, periodontal or combined disease.
Scopo del lavoro è descrivere il trattamento di due incisivi laterali superiori affetti da anomalie di sviluppo (Oehlers, tipo I e II) trattati rispettivamente mediante terapia rigenerativa parodontale associata a correzione conservativa dell’anomalia di forma, e ritrattamento ortogrado.
Entrambe le terapie praticate hanno determinato la completa remissione dei sintomi iniziali e la totale guarigione delle lesioni presenti.
Il “dens invaginatus” e’ una malformazione dello sviluppo dentale che puo’ predisporre all’insorgenza di carie, coinvolgimento pulpare e lesioni parodontali, il cui trattamento può richiedere un approccio specialistico e talvolta multidisciplinare. Tale malformazione dovrebbe essere quindi riconosciuta per tempo per poter instaurare efficaci protocolli di prevenzione, quando possibili, o evitare che le conseguenze correlate generino una patologia endodontica, parodontale o combinata non recuperabile.
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