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Article
Oral health status of patients after replacement of removable partial dentures after three years

Author: Sahar A. Naji
Journal: nursing national Iraqi specility المجلة العراقية الوطنية للعلوم التمريضية ISSN: 18122388 Year: 2011 Volume: 24 Issue: 2 Pages: 110-117
Publisher: Baghdad University جامعة بغداد

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Abstract

Objective(s): To assess the effect of removable partial dentures on the abutment teeth in comparison with that of the remaining dentition, and to investigate the effect of regular check up on periodontal health for patients using this type of prosthesis.Methodology: One hundred patients wearing removable partial dentures for at least three years included in the study. Teeth used as direct or in direct retainers for the removable partial denture were considered as the study group, while the remaining dentition in the same jaw was considered as the control group. The following periodontal parameters were registered for each tooth, plaque and gingival indices, clinical attachment level and tooth mobility. Patients were divided into two groups as regular and irregular attendants.Results: Among the 100 patient, 30 were regular attendants. A significant difference in clinical attachment level and plaque accumulation was detected between study and control group of teeth. In addition there was a statistically significant difference in all periodontal parameters between regular and irregular attendants Results: Among the 100 patient, 30 were regular attendants. A significant difference in clinical attachment level and plaque accumulation was detected between study and control group of teeth. In addition there was a statistically significant difference in all periodontal parameters between regular and irregular attendants.Recommendations: The Patient palaces for removable partial denture must maintain visits so we can check the removable partial denture and supporting teeth for any problem. Also, call for an appointment as soon as you develop any problem with your denture.

الهـدف: يدرس هذا البحث تقييم تأثير الطقم الجزئي المتحرك الاكريلى على الأسنان الطبيعية ومقارنتها مع بقية الأسنان الموجودة في نفس عظم الفك والتحري عن الحالة الصحية لفم المريض. المنهجيـة: تتضمن هذه الدراسة أخد (100) مريض ممن يترددون على: العيادة الإستشارية في المعهد الطبي التقني/ بغداد والعيادة التعليمية في كلية طب الأسنان ومتابعة المرضى خلال ثلاث سنوات. عُـدّت الأسنان الطبيعية التي تقوم بحمل المشبك المعدني هي الأسنان ذات الاتصال المباشر, أمّا الأسنان التي تقوم بإسناد قاعدة الطقم (acrylic base) الأسنان ذات الإتصال غير المباشر, فقد عُـدّت هذه المجموعة من الأسنان الطبيعية ذات الاتصال المباشر وغير المباشر محور الدراسة (study group)، أمّا بقية الأسنان الموجودة في نفس عظم الفك عُـدّت مجموعة سيطرة ( control group ). إنّ القياسات المختصة بالأسنان قد سُجلت لكل سن وهي:(الطبقة الجرثومية, الحالة الصحية للثة, ومستوى ميلان السن الطبيعي المتصل بالمشبك). قـُسّم المرضى إلى قسمين: 1. المجموعة المواظبة على الفحص الدوري وعددها (30) مريض؛ 2. المجموعة غير المواظبة على الفحص الدوري وعددها (70) مريض. النتائـج: أظهرت النتائج أنّ الأسنان الطبيعية الحاملة للمشبك المعدني في الطقم الجزئي المتحرك هي أكثر تضرراً من بقية الأسنان الموجودة في نفس عظم الفك في المجموعتين المجموعة غير المواظبة لفحص الأسنان وأنّ المرضى ضمن المجموعة المواظبة أقل تضرراً بسبب متابعتهم الدورية ممّا أدى إلى قلة ضرر الأسنان الطبيعية.التوصيـات: المرضى المرتدين للطقم الجزئي المتحرك يجب أن يحافظوا على الزيارة الدورية للعيادة لغرض فحص الطقم الجزئي المتحرك والأسنان الحاملة للمشبك لتلافي ظهور أي مشكلة، كذلك دعوة لتعين بصورة مباشرة في كشف أي مشكلة عند ارتداء الطقم.


Article
SURVEYING OF COMPLETE AND PARTIAL DENTURE WEARING PROBLEMS: STATISTICAL STUDY
استقصاء مشاكل اطقم الاسنان الكاملة و الجزئية الناجمة عن الاستخدام:دراسة احصائية

Author: Abbass Ibrahim Hussain عباس ابراهيم حسين
Journal: Journal of university of Anbar for Pure science مجلة جامعة الانبار للعلوم الصرفة ISSN: ISSN: 19918941 Year: 2008 Volume: 2 Issue: 2 Pages: 73-77
Publisher: University of Anbar جامعة الانبار

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Abstract

Dental laboratories are commonly confronted with individuals seeking alterations on their complete or partial dentures. Some of these problems may not be related procedure followed to produce such dentures in the dental laboratories, rather they may be the result of improper use or even unrevealed certain dental history by the patient due to lack of knowledge or just as a matter of careless.
Identifying the most common problems may help both technicians and patients avoiding repeating of casting procedure and costs as well as unnecessary efforts. The most common problem exhibited by wearers of complete and partial denture are loose dentures and lack of retention.Gum diseases are only found in patients wearing complete dentures (4.3%).

غالبا ما تواجه مختبرات صناعة الاسنان مشاكل لاشخاص يسعون لاجراء تعديلات على اطقماسنانهم الكلية او الجزئية. و ان بعض هذه المشاكل ليست ناجمة عن اسلوب معين تم استخدامه مختبريالانتاج هذه الاطقم ، بل ان هذه المشاكل ربما تكون ناجمة عن سوء استخدام اطقم الاسنان من قبل الشخصنفسه ، او ربما كانت بسبب عدم ذكر المستخدم لامراض معينة يعاني منها بسبب عدم المعرفة الكافي اوعدم الاكتراث الامر الذي يتسبب في تفاقم مشاكل اطقم الاسنان.ان معرفة المشاكل الاكثر شيوعا و التي تنتج عن استخدم اطقم الاسنان الكاملة و الجزئية ، سيكونمفيدا للفنيين المشرفين على هذه العملية من ناحية و من ناحية اخرى فانها ستعود بالفائدة على المستخدملانه لن يضطر الى اعادة تصنيع الطقم الذي يستخدمه مبكرا. لقد وجد ان اكثر هذه المشاكل شيوعا هي% كبر و عدم موافقة الاطقم للانطباق.اما مشاكل الاطقم الناتجة عن امراض اللثة فقد وجد انها تشكل ٤,٣عند مستخدمي الاطقم الكلية فقط.


Article
Incidence of different types of removable partial dentures in Sulaimania

Author: Faraidoon A. Miran
Journal: Journal of Oral and Dental Research مجلة طب الفم والاسنان ISSN: 23106417 Year: 2018 Volume: 5 Issue: 1 Pages: 70-77
Publisher: Iraqi Association for Oral Research الجمعية العراقية لبحوث طب الفم

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Abstract

Background: Removable partial prosthodontics is reversible treatment method for partially edentulous patients at any age. Even thought, recent reports have shown a consistent decline in the prevalence of tooth loss during the past few decades, the remain significant variation in tooth loss distribution Objectives The aim of the study is to detect the incidence of different classes of removable partial dentures according to Kennedy classification, age range and gender. Materials and methods the work authorization forms for 102 patients requiring RPDs from the clinics of the College of Dentistry, Sulaimania University. A one-year period was reviewed for this study. The Kennedy classification with the guidelines advocated by Applegate for each partially edentulous arch was recorded, and the data was collected for RPD regarding gender and age. Results Females (60.41%) have more RPDs restorations than males (39.58%) at the total of 144 RPD100% .Kennedy class II (51.38 %) RPDs more common than other classes and the female (27.77%) more than male (23.61%)in class II And the least common is Class IV(1.38%)only .in relation of distribution of RPD by age Most of the RPD are at the age of 45-54 of age (47.22%) and least common RPDs at age of 15-24 Years (1.38%) also it is only in the female group The upper P.D. (50.69%) is more common than lower (49.30%). Conclusion In the females, the upper class II RPD was the most common incidence at age between 45-54 years.


Article
Clinical evaluations for the masticatory efficiency of heat cure resin and flexible types of denture base materials

Authors: Zainab M. J. Al-Jammali --- Widad Abdul-Hadi Al Nakkash
Journal: Journal of baghdad college of dentistry مجلة كلية طب الاسنان بغداد ISSN: 16800087 Year: 2013 Volume: 25 Issue: 3 Pages: 57-61
Publisher: Baghdad University جامعة بغداد

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Abstract

Background: The aim of this study was for estimation and comparism of masticatory efficiency in patient wearingheat cured acrylic and flexible base partial denture, finding out the role of peanuts and carrots on the measurementof chewing efficiency, and to find out whether the types of P.D. (being single or two opposing each other) has anyeffect on the masticatory performance.Materials and methods: Twenty partially edentulous patients were selected. Five of these patients were selectedhaving Kennedy class I with no modification against natural dentition, other 5patients having Cl.I against Cl.I . Theother 5 patients having Cl.III against natural dentition and the last 5 patients were with Cl.III against Cl.III. several wayswere used for measuring masticatory efficiency including: number of chewing strokes, number of swallows, themastication time, and measure the masticatory performance by sieving method. Differences between the means ofthe four groups were analyzed with t-test.Results: The differences between the two denture base types in total number of strokes was significant at (p<0.001) instudy group (2,3,4), the study group (4)have the highest mean value of the total number of strokes for acrylicdenture during chewing carrots food types(47.6)strokes. The highest mean value of the total chewing time is for thefourth group with the acrylic denture during chewing carrots (35.2 sec.), and the highest masticatory performanceindex was for the flexible denture in all study groups during chewing the two tested food.Conclusion: The flexible partial denture provide better chewing efficiency than heat cure acrylic partial denture, themasticatory performance was higher for flexible partial denture than heat cure acrylic partial denture, there wassignificant differences between carrots and peanuts in both flexible and heat cure acrylic partial denture, andpatient with single denture show better chewing efficiency than patient with paired denture


Article
Effects of Novel Polyetheretherketone (PEEK) Clasp Design on Retentive Force at Different Tooth Undercuts

Authors: Saja A. Muhsin --- Duncan J. Wood --- Anthony Johnson --- NunoSereno --- et al.
Journal: Journal of Oral and Dental Research مجلة طب الفم والاسنان ISSN: 23106417 Year: 2018 Volume: 5 Issue: 2 Pages: 13-25
Publisher: Iraqi Association for Oral Research الجمعية العراقية لبحوث طب الفم

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Abstract

Background The material characteristics of many thermoplastic materials, including PEEK, have been evaluated in vitro to investigate their mechanical and physical properties. However, all the manufacturers of thermoplastic materials and laboratories making non-metal clasp dentures still recommend the original denture design. Objectives To investigate the retentive force of a novel clasp design for PEEK thermoplastic material at 3 different undercut depths with fatigue cycling equivalent to 3 years of insertion/removal use. Materials and Methods Samples (n=10) were prepared for the test. A novel clasp designs for PEEK and conventional design for Co-Cr were created using 3D-RPD software (DWOS). PEEK-Juvora™ clasps were fabricated using a Roland 3D-milling machine; PEEK-Optima®NI1 were thermo-pressed at 200˚C mold temperature using thermopress 400 injecting unit; while Co-Cr alloy was used to cast the metal clasps. Samples were tested at tooth undercut depths of 0.25, 0.50, and 0.75 mm. They were investigated for the retentive force at the initial fabrication and after 1st, 2nd, and 3rd Year respectively of fatigue simulation. This was represented by clasp insertion and removal 3 times per day using fatigue chewing simulator machine. The data was statistically analyzed using ANOVA at p<0.05.Results There was a statistically significant difference (p<0.05) between the retentive force of the PEEK compared to Co-Cr clasps. PEEK-Juvora™ exhibited the highest retention at 3 different undercut depths over 3 years followed by PEEK-Optima®NI1 at 0.75, and 0.50mm (P<0.05). However, the initial retentive force required to dislodge the PEEK-Optima®NI1 clasp processed at 200 °C was statistically non-significant (p>0.05) as the Co-Cr at 0.25 mm tooth undercut depth. Conclusion Clasps made of machined PEEK-Juvora™ and thermo-pressed PEEK-Optima®NI1 at 200 ˚C mold temperatures showed the most promising retentive force with a non-fracture tendency at deeper tooth undercut. This novel PEEK clasp design may improve the clasp retention, bracing, additionally to increase its durability comparing to Co-Crclasp.

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