Utilization of magnetic mallet during dental implantation in narrow mandibular alveolar ridge: A case report
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Mallet
Alveolar ridge
Ridge splitting and ridge expansion have been used to expand narrow alveolar ridges. Piezosurgical ridge splitting involves separating the atrophic crests with piezosurgical inserts. Ridge expansion with motor-driven expanders was proposed to achieve the cortical dilation. The purpose of this study was to evaluate the efficacy of ridge gain by ridge expansion or ridge splitting. Eighteen (36 ramus) swine cadaver jaws were first divided into two groups- ridge expansion with a motor-driven expander or ridge splitting with the piezosurgical system. Then, either an active-tapping implant or nonactivetapping cylinder-type implant was inserted. The crestal ridge diameter change was measured with a Boley gauge. The area of bony perforation, which includes fenestrations and dehiscences, was measured with a prefabricated reference grid. The results showed that there was no statistically significant difference in crestal width gain between groups. However, the combination of the motor-driven ridge expansion technique and the active-tapping implant could be beneficial in significantly decreasing the bony perforation area.
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Perforation
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To analyse and compare the dimensional changes of unassisted extraction sockets with alveolar ridge preservation (ARP) techniques and investigate any factors that impact the resorption of the alveolar bone.A systematic search was conducted to identify randomised clinical trials (RCTs). All data were extracted, and a meta-analysis was performed for the changes in all buccolingual ridge width, midbuccal and midlingual ridge height, and mesial and distal ridge height, and horizontal width at reference points apical to the crestal area.Based on 14 RCTs, the effectiveness of ARP in reducing the dimensions of the postextraction alveolar socket was confirmed. The clinical magnitude of this effect was 1.95 mm in the buccolingual ridge width, 1.62 mm in the midbuccal ridge height, and 1.26 mm on the midlingual ridge height. Additionally, 0.45 mm and 0.34 mm for mesial and distal ridge height, and 1.21 mm, and 0.76 mm for ridge width changes at points 3 and 5 mm apical to the crest were noted. Meta-regression analyses revealed that the reflection of flaps and primary wound coverage during ARP may have detrimental effects on bone remodelling, while no statistical significance was observed for any of the bone graft substitutes or the percentage of molar sockets.Regardless of the protocol, ARP can only minimise ridge resorption. ARP is most effective on horizontal ridge width, providing the most benefit coronally (approximating the crest), followed by the midbuccal ridge height.
Alveolar ridge
Crest
Alveolar crest
Alveolar process
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The aim of this study was to create an overview of the treatment of mallet fingers in Dutch hospitals.A national online questionnaire was used to determine the treatment of mallet fingers in Dutch emergency units.Data were received from 58 units (response rate 97%). All the emergency units treated an uncomplicated mallet finger with a splint. The treatment of complicated mallet fingers was less uniform. The departments of general, orthopaedic and plastic surgery were involved in the treatment and their involvement varied according to the type of mallet finger and showed variations in the follow-up treatment.There is a general consensus on the treatment of uncomplicated mallet fingers. The follow-up treatment of uncomplicated lesions as well as the treatment of complicated mallet fingers should be fields of future research.
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Mallet finger
Splints
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To evaluate the survival rate, success rate, soft tissue conditions and marginal bone level changes of implants following micro crestal flap-alveolar ridge preservation at molar extraction sockets with severe periodontitis, compared to natural healing.
Alveolar ridge
Bleeding on probing
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Title: PRO 30/55/084/056 - Abstract from J Mallet
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Purpose To analyse and compare the dimensional changes of unassisted extraction sockets with alveolar ridge preservation (ARP) techniques and investigate any factors that impact the resorption of the alveolar bone. Materials and methods A systematic search was conducted to identify randomised clinical trials (RCTs). All data were extracted, and a meta-analysis was performed for the changes in all buccolingual ridge width, midbuccal and midlingual ridge height, and mesial and distal ridge height, and horizontal width at reference points apical to the crestal area. Results Based on 14 RCTs, the effectiveness of ARP in reducing the dimensions of the postextraction alveolar socket was confirmed. The clinical magnitude of this effect was 1.95 mm in the buccolingual ridge width, 1.62 mm in the midbuccal ridge height, and 1.26 mm on the midlingual ridge height. Additionally, 0.45 mm and 0.34 mm for mesial and distal ridge height, and 1.21 mm, and 0.76 mm for ridge width changes at points 3 and 5 mm apical to the crest were noted. Meta-regression analyses revealed that the reflection of flaps and primary wound coverage during ARP may have detrimental effects on bone remodelling, while no statistical significance was observed for any of the bone graft substitutes or the percentage of molar sockets. Conclusions Regardless of the protocol, ARP can only minimise ridge resorption. ARP is most effective on horizontal ridge width, providing the most benefit coronally (approximating the crest), followed by the midbuccal ridge height.
Alveolar ridge
Crest
Alveolar crest
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Introduction : Among many techniques advocated for the horizontally deficient alveolar ridges, ridge split technique has many advantages. Materials and Methods : Here, the main treatment management strategy of the horizontally collapsed ridges, the ridge split approach, is discussed in detail according to our new ridge width classification, with the goal of assisting an operator in choosing the proper bone augmentation technique. Results : Success rate was more than 97 percent with using our protocol in treatment of cases in this study. Conclusion : Choice of the technique is dependent ultimately on operator experience and surgical comfort. The ridge split has many advantages, including lack of donor site morbidity and graft stability over time. Key words : Ridge-split, Alveolar ridge.
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Operator (biology)
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Il en aura fallu du temps pour que l’œuvre de l’architecte francais Robert Mallet-Stevens (1886-1945) soit reconnue a sa juste valeur et occupe la place qui lui revient parmi les plus grands architectes modernes. Mort trop tot, il n’a pu veritablement communique sur son travail (meme s’il a beaucoup ecrit de son vivant et diffuse les images de certaines de ses realisations) pour qu’il s’inscrive durablement dans la memoire collective d’apres-guerre a l’instar d’un Le Corbusier dont la carrier...
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This article proposes a system for identifying unsigned theological articles by the abbé Edme Mallet in Diderot and d’Alembert’s Encyclopédie. Beginning with sources cited exclusively by Mallet among contributors to the Encyclopédie, we are led to a group of articles which, apart from being attributable to Mallet, contain expressions that are particular to him and that may serve in turn as search criteria. Conducting further searches with each of these expressions allows us to identify a relatively large number of anonymous articles whose common authorship is, in several instances, confirmed by cross-references. Establishing a significant presence of unsigned articles by Mallet, particularly in the later volumes of the Encyclopédie, calls into question prior assump tions as to the nature and extent of his contribution. In contrast with the traditional view that Mallet’s participation was primarily limited to the early volumes, this article relies on evidence that indicates he provided manuscripts for the entire Encyclopédie in fulfilment of his original contract prior to the publication of the Prospectus.
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Prospectus
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Summary Though the name of Robert Mallet was once inevitably associated with the scientific study of earthquakes, it is less well known today. As part of an overdue reappraisal, this essay examines Mallet's major seismological projects and publications, emphasizing his theoretical contributions. Mallet's own claim to be a founder of modern seismology is upheld. Beyond that, however, he is also seen to be an important precursor of plate tectonics.
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