POSSIBILITIES FOR MODIFICATION OF SURGICAL OBTURATOR INTO TEMPORARY OBTURATOR

Background: Maxillary resection causes different types of damages in the maxillofacial area, which are treated by surgical and prosthetic restorative methods. Aim: The described clinical case follows up the initial stages of the prosthetic treatment, as well as the possible modification of surgical obturator into temporary obturator in a patient with maxillary resection. Materials and methods: The prosthetic treatment of a 55-years-old female patient with a surgical operation of upper jaw cancer is described. The surgical obturator is developed a week after the resection. The preliminary impressions are taken with irreversible hydrocolloid impression material. The occlusion height and central relation are fixed by occlusion rims. The surgical obturator was fabricated by heat cured acrylic resin with a low amount of residual monomer. Moreover, metal clasps were used for retention and stability. The borders of the obturating part were covered with a thin layer of relining silicone material after the adjustment. The surgical obturator was modified into a temporary one directly in the patient's mouth after two months by applying the same rebasing material and designing a silicone hollow-bulb obturating part. Results: The treatment results revealed a successful restoration of the patient's speaking, feeding, and swallowing abilities. The application of silicone material inhibited the appearance of decubitus ulcers and facilitated the normal healing process. The direct design of hollow-bulb silicone obturating part significantly improved the retention and stability of the obturator. Conclusion: The application of prosthetic treatment methods in the first days after the maxillary resection allows for restoration of speaking and feeding.

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THE COMBINATION OF FACTORS - EARLY LOSS OF UPPER TEMPORAL INCISORS AND MOUTH BREATHING - IN THE FORMATION OF RETENTION OF PERMANENT INCISORS. CLINICAL CASE

The actual problems in dentistry ◽

10.18481/2077-7566-2018-14-3-73-78 ◽

2018 ◽

Vol 14 (3) ◽

pp. 73-78

Author(s):

Евгения Бимбас ◽

E. Bimbas ◽

Анастасия Шишмарева ◽

Anastasiya Shishmareva ◽

Мария Мельникова ◽

...

Keyword(s):

Clinical Case ◽

Treatment Plan ◽

Vertical Plane ◽

Mouth Breathing ◽

Nasal Breathing ◽

Treatment Results ◽

Early Loss ◽

Screening Study ◽

Upper Jaw ◽

Artificial Teeth

Subject. Demonstration of the clinical case retention of the upper permanent incisor and the stages of treatment. The aim of the study is to present in the clinical example the consequence of premature loss of upper temporal incisors and obstruction of nasal breathing in the form of retention of the upper permanent incisor. Methodology. The article describes the clinical case of treatment of the retention of a permanent incisor of the 9 years 11 months aged patient. The article presents a combination of the main factors for the occurrence of retention of incisors, such as premature loss of upper temporal incisors and the disruption of nasal breathing. The patient underwent a complete clinical examination with additional research methods, a phased treatment plan was drawn up. Complex orthodonto-surgical treatment on bracket system with forced diagnostic extrusion of the upper permanent incisor was carried out for 20 months. The article presents the phased dynamics of orthodontic treatment. Results. The upper permanent incisor was installed in the dentition as a result of the treatment, the upper jaw widened, a favorable closure of the dentition in the vertical plane was achieved, the jaw occlusion was preserved in class II, nasal breathing was improved. Conclusion. With early loss of upper temporal incisors, mouth breathing and contraction of the upper jaw, the use of a device with a screw along the middle line and artificial teeth is necessary, timely screening study - the analysis of orthopantomograms in children is necessary from 6 years to prevent the retention of teeth (in the period of an early replacement bite), which will allow to diagnose deviations in the development of the dentoalveolar system and start treatment in time.

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Microdontia treatment with orthodontics and indirect restoration: clinical case

ARCHIVES OF HEALTH INVESTIGATION ◽

10.21270/archi.v10i8.5447 ◽

2021 ◽

Vol 10 (8) ◽

pp. 1277-1280

Author(s):

Sávio Morato de Lacerda Gontijo ◽

Laura Costa Gonçalves ◽

Fernanda Novais Arantes ◽

Francisca Daniele Jardilino Silami ◽

João Batista Novaes Júnior ◽

...

Keyword(s):

Case Report ◽

Orthodontic Treatment ◽

Clinical Case ◽

Acrylic Resin ◽

Alveolar Ridge ◽

Coil Spring ◽

Ceramic System ◽

First Order ◽

Light Curing ◽

Ceramic Crown

Objective: This case report aims to present the microdontia treatment of tooth 35 through pre-prosthetic orthodontics, followed by re-anatomization with an indirect restoration. Case report: A 21-year-old female patient presented with microdontia in tooth 35, with a distalized and vestibularized crown. In addition, tooth 34 was gyroverted with mesial diastema. Orthodontic mechanics with segmented arch were used to centralize tooth 35 in the alveolar ridge, close the diastema in the mesial of tooth 34, and correct its gyroversion. For lingualization of tooth 35, a first-order fold (in set) was performed, and for mesialization, an open-coil spring was used between teeth 35 and 36. A closed-coil spring was used to delimit the movement of tooth 35 to mesial. The force applied by the open spring for mesialization of tooth 35 was transmitted to tooth 34, through the closed spring, resulting in its mesialization; this, closed the diastema between teeth 33 and 34 and corrected the gyroversion. Subsequently, the coronary preparation was performed with diamond tips 1014 and 3146, and confection of the temporary crown in acrylic resin. For the ceramic system, IPS™ e.max Press was used. The ceramic crown was luting using the adhesive technique, followed by light curing for 40 seconds on each face of the tooth. Conclusion: It can be concluded that the re-anatomization of a small tooth should be the first treatment option. However, pre-prosthetic orthodontic treatment may be necessary.

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Clinical Case of Malignant Acrospiroma, Treatment Results Evaluation

Cancer therapy & Oncology International Journal ◽

10.19080/ctoij.2017.06.555694 ◽

2017 ◽

Vol 6 (4) ◽

Author(s):

Hojouj Mohammad

Keyword(s):

Clinical Case ◽

Treatment Results

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The Effect of Chitosan Addition in Acrylic Resin Matrix towards the Residual Monomers and Impact Strength

Research Journal of Pharmacy and Technology ◽

10.52711/0974-360x.2021.00403 ◽

2021 ◽

pp. 2280-2285

Author(s):

Titik Ismiyati ◽

Ananto Ali Alhasyimi

Keyword(s):

Acrylic Acid ◽

Impact Strength ◽

Charpy Impact ◽

Acrylic Resin ◽

Test Sample ◽

Acid Group ◽

Resin Matrix ◽

Residual Monomer ◽

Group 2 ◽

The Impact

Background: A residual monomer might have impact on the quality of acrylic resin since its caused allergic reactions and inflammation. Chitosan is a biocompatible material and potential to reduce residual monomers and ameliorate the impact strength of acrylic resin Objective of the study: To examine the effect of an acrylic resin matrix mixed with chitosan together with 1% and 2% acrylic acid as denture base and orthodontic material on residual monomers and impact strength. Methodology: There were 30 samples for the test analysis. The impact strength test sample formed with a plate size of 55 × 10 × 10mm, whereas the residual monomer test sample was prepared into powder. The test samples were divided into 3 groups, of 10 samples. Group 1 acrylic resin only, group 2 acrylic resin matrix mixed with chitosan and 1% acrylic acid, group 3 is the same as group 2 but with a concentration of 2% acrylic acid. Gas chromatography was used for measuring the residual monomers. The impact strength was tested by the Charpy impact. The data was evaluated using the ANOVA and correlation test. Results: There were significant differences (p < 0.05) in acrylic resin without addition with the matrix of acrylic resin with chitosan and acrylic acid 1% and 2% to the number of monomers and impact strength. Conclusion: The mixture of acrylic resin with chitosan and acrylic acid 1% and 2% can reduce the amount of residual monomer and increase the impact strength.

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The effects of process variables on levels of residual monomer in autopolymerizing dental acrylic resin

Journal of Dentistry ◽

10.1016/0300-5712(83)90051-9 ◽

1983 ◽

Vol 11 (1) ◽

pp. 80-88 ◽

Cited By ~ 57

Author(s):

D.J. Lamb ◽

Bryan Ellis ◽

David Priestley

Keyword(s):

Acrylic Resin ◽

Process Variables ◽

Residual Monomer ◽

Dental Acrylic

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Green envelope as an architectural strategy for energy efficiency in a library building

MATEC Web of Conferences ◽

10.1051/matecconf/201926601004 ◽

2019 ◽

Vol 266 ◽

pp. 01004 ◽

Cited By ~ 1

Author(s):

Azlan Ariff Ali Ariff ◽

Sabarinah Sheikh Ahmad ◽

Mohd Aljefri Hussin

Keyword(s):

Energy Consumption ◽

Indoor Environment ◽

Building Simulation ◽

Treatment Results ◽

Building Information Modelling ◽

Design Alternatives ◽

Different Types ◽

Building Information ◽

Reduction Of Energy Consumption ◽

Envelope Functions

In the context of Malaysian tropical climate, green envelope functions to provide satisfying indoor environment and achieve the best performance with minimal energy consumption. Buildings that rely on air-conditioning to improve thermal comfort could benefit from green envelope potentials. Hence, the objective of this paper is to explore the impacts of various types of green envelope towards reducing the energy consumption of a two-storey library building. The methodology approach is quantitative and data are collected through building simulation using Revit Building Information Modelling (BIM). Parameters studied are building orientation, wall insulation, envelope materials, and façade treatment. Results showed that different types of green envelope posed different impact on energy consumption of the library and double glazed windows contribute the most significant reduction of energy consumption. The study establishes the contribution of green envelope and advocates the use of building simulation as research methodology, as it helps to improve envelope design, and to predict the possible outcomes of design alternatives.

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Serum Bile Acids Profiling in Inflammatory Bowel Disease Patients Treated with Anti-TNFs

Cells ◽

10.3390/cells8080817 ◽

2019 ◽

Vol 8 (8) ◽

pp. 817

Author(s):

Roda ◽

Porru ◽

Katsanos ◽

Skamnelos ◽

Kyriakidi ◽

...

Keyword(s):

Bile Acids ◽

Chronic Conditions ◽

Healing Process ◽

Principal Component ◽

Tnf Alpha ◽

Treatment Results ◽

Serum Bile Acids ◽

Clinical Biomarkers ◽

Bowel Diseases ◽

Inflammatory Bowel

Background: Inflammatory bowel diseases (IBD), ulcerative colitis (UC), and Crohn’s disease (CD), represent systematic chronic conditions with a deficient intestinal absorption. We first attempt to investigate the serum bile acids (sBAs) profile in a large cohort of IBD patients to evaluate changes under anti-TNF alpha treatment. Methods: Forty CD and 40 UC patients were enrolled and BAs were quantified by high-pressure liquid chromatography-electrospray-tandem mass spectrometry (HPLC-ES-MS/MS). Up to 15 different sBAs concentrations and clinical biomarkers where added to a Principal Component Analysis (PCA) to discriminate IBD from healthy conditions and treatment. Results: PCA allowed a separation into two clusters within CD (biologic-free patients and patients treated with anti-TNF alpha drugs and healthy subjects) but not UC. The first included CD. CD patients receiving anti-TNF alpha have an increase in total sBAs (4.11 1.23 μM) compared to patients not exposed. Secondary BAs significantly increase after anti-TNF alpha treatment (1.54 0.83 μM). Furthermore, multivariate analysis based on sBA concentration highlighted a different qualitative sBAs profile for UC and CD patients treated with conventional therapy. Conclusion: According to our results, anti-TNF alpha in CD restores the sBA profile by re-establishing the physiological levels. These findings indicate that, secondary BAs might serve as an indirect biomarker of the healing process.

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