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Iris positioning technique by using face symmetric measurement tool on the custom ocular prosthesis: a case report Rilinda, Femy; Tamin, Haslinda Z.; Ritonga, Putri Welda Utami
Indonesian Journal of Prosthodontic Vol 2, No 2 (2021): December 2021
Publisher : Indonesia Prosthodontic Association

Loss of eye can have a major psychological impact on the patient. To overcome this problem, an ocular prosthetic must have been fabricated similar with the natural eye. Various techniques are documented to determine the symme- trical bilateral iris position; these methods can be subjective and have no measurement guidelines. A 20-year-old male patient came to the Prosthodontic Clinic of Dental Hospital Universitas Sumatera Utara with the diagnosis is post enucleation socket syndrome. Determination of the iris position using the face symmetric measurement-tool by focus to the vertical and horizontal lines of the facial symmetry guide. Confirm the alignment of the vertical lines by connecting the trichionâ€“glabellaâ€“subnasalâ€“gnathion guide points so that they vertically divide the two sides of the face, then the two horizontal lines by connecting the left-right cheilon with the mesial-distal canthus of the right and left eyes. This tool is like a face mask with vertical and horizontal guidelines connecting the symmetrical guide points of the face accompanied by centimeters and millimetres making it easy to measure distances and sizes of the iris symmetrically. The use of this tool has given good results in determining the position of the iris because its simplicity and can see facial symmetry.

Disinfeksi Alkaline Peroksida dan Castor Oil 10% terhadap Jumlah Candida Albicans, Kekerasan Permukaan, Stabilitas Warna dan Kekuatan Flexural Nilontermoplastis Dasar Gigi Palsu Ritonga, Putri Welda Utami
Journal of Telenursing (JOTING) Vol 5 No 2 (2023): Journal of Telenursing (JOTING)
Publisher : Institut Penelitian Matematika, Komputer, Keperawatan, Pendidikan dan Ekonomi (IPM2KPE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31539/joting.v5i2.7532

This study aims to determine the effect of soaking thermoplastic nylon denture bases in alkaline peroxide and 10% castor oil on the number of candida albicans, surface roughness, color stability, and flexural strength. This research method is laboratory experimental using thermoplastic nylon. The results showed that there was an effect of alkali peroxide and 10% castor oil on the number of candida albicans for eight days (p = 0.03) and 12 days (p = 0.003), there was no effect on surface roughness for eight days (p = 0.299 ), and there was an effect on surface roughness for 12 days (p=0.09). There was no effect on color stability and flexural strength for eight days and 12 days (p>0.05). This is the diffusion process between alkaline peroxide and castor oil into thermoplastic nylon, castor oil concentration, soaking time, and soaking temperature. In conclusion, drinking thermoplastic nylon denture base in 10% castor oil has the same results as soaking in alkaline peroxide. Keywords: Candida Albicans, Surface Hardness, Flexural Strength, Thermoplastic Nylon, Color Stability

Modification of stock tray in the manufacture of Aramany class IV obturator maxillofacial prosthesis: Modifikasi stock tray pada pembuatan prostesis maksilofasial obturator klas IV Aramany Sutrisman, Andry; Syafrinani; Ritonga, Putri Welda Utami
Makassar Dental Journal Vol. 13 No. 3 (2024): Volume 13 Issue 3 Desember 2024
Publisher : Makassar Dental Journal PDGI Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35856/mdj.v13i3.1183

A maxillofacial prosthesis (MFP) was inserted to replace the hard and soft tissues and teeth lost after maxillectomy surgery in a case of ameloblastoma. Facial deformity, soft tissue invasion and limited mouth opening caused difficulties in the moulding pro-cess. This article presents anatomical moulding modifications to improve treatment success in MFP placement. A 19-year-old female came to RSGM USU referred from RSU Murni Teguh for immediate post-surgical placement of a maxillary closure device. The patient was diagnosed as ameloblastoma with facial deformity, and tissue invasion on the left side. The patient's facial con-dition was asymmetrical and difficult to open the mouth, making impression difficult. Anatomical impression was performed with modification and selection of appropriate stock tray, followed by fabrication of surgical obturator MFP and Class IV Aramany in-terim as prosthetic rehabilitation device. It was concluded that MFP insertion in post-maxillectomy patients with impression dif-ficulties, modification of the stock tray moulding spoon can determine the success of treatment.

The Accuracy of Cut-Out-Rescan Method in Digital Impression Ally, Sabrina; Ritonga, Putri Welda Utami; Tamin , Haslinda Z.
Indonesian Journal of Prosthodontic Vol 5 No 2 (2024): December 2024
Publisher : Indonesia Prosthodontic Association

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46934/ijp.v5i2.218

The process of fabricating fixed dentures starts with an impression of the anatomical structure of the teeth. Currently, the use of an intraoral scanner (IOS) for digital impression has improved due to its rapid workflow. One of the advantages of IOS is the availability of the cut-out-rescan method, which involves rescanning unscanned areas (mesh holes) without the need to repeat the entire impression procedure. This method is recommended to assist in the digital workflow of fixed denture fabrication, by performing a cut-out on the prepared tooth, rescan, and merge it with the initial scan (pre-preparation scan). The accuracy of the cut-out-rescan method is measured based on trueness and precision. The aim of this literature is to describe the accuracy of the cut-out-rescan method in digital impression. Rescanning procedure influenced the accuracy of the definitive scan. The number and diameter of mesh holes influenced the scanning accuracy of IOS. The higher the number and diameter of the rescanned area, the lower the accuracy of the IOS. The narrow anatomical structure of teeth such as the anterior teeth also made the rescanning process more difficult. Nonetheless, the use of the cut-out-rescan method is quite practical and makes it easier for clinicians to perform digital workflow as there is no need to repeat impression procedure to obtain a definitive virtual cast. Clinical workflow becomes quicker by the elimination of physical casts, thus reducing clinical expenses. Keywords: IOS, workflow, cut-out-rescan, mesh holes, accuracy

The use of hydrofluoric acid as a surface treatment material on bond strength in repair system of lithium disilicate – Literature Review Razalie, Ludwika Patricia; Ritonga, Putri Welda Utami; Syafrinani
Indonesian Journal of Prosthodontic Vol 5 No 2 (2024): December 2024
Publisher : Indonesia Prosthodontic Association

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46934/ijp.v5i2.222

Lithium disilicate is a glassy ceramic material that mimics the aesthetics and strength of natural tooth structure, making it very popular in recent years. Lithium disilicate has good flexural strength, translucency, and high mechanical strength of up to 360±60 MPa which is superior to feldspathic porcelain or leucite-reinforced glass ceramic. These excellent properties make it suitable for both anterior and posterior use. Naturally, ceramic materials are inherently brittle and tend to fracture easily in repetitive function. There are several methods of fracture treatment, one of which is repair. Composite resin is frequently used for ceramic repair as a simple and fast solution. The bond strength of ceramic repairs on lithium disilicate using hydrofluoric (HF) acid is higher compared to other methods. Hydrofluoric acid that has been used as a surface treatment for lithium disilicate is 4% and 5% HF acid. This article reviews the effect of HF as a surface treatment material on bonding strength between lithium disilicate and composite resin. The application of hydrofluoric acid in ceramic surface promotes the reaction with the glass matrix that contains silica and form hexafluorosilicates. This glass matrix is selectively removed and the crystalline structure is exposed. As a result, the surface of the ceramic becomes rough and this roughly etched surface helps to provide more surface energy prior to combining with the silane solution. Silane coupling agent forms a chemical covalent bond between silica on the lithium disilicate surface and composite resin. This bond will increase the micromechanical interlock. Keywords: lithium disilicate, surface treatment, hydrofluoric acid, bond strength

Relationship between the clinical assessment of maxillary and mandibular complete denture stability and denture-bearing area towards the patient’s satisfaction level Ritonga, Putri Welda Utami; Prabakaran, Luveena Loshini
Padjadjaran Journal of Dentistry Vol 30, No 2 (2018): July 2018
Publisher : Universitas Padjadjaran

Introduction: The dentist’s evaluation of complete denture often differs from the patient’s evaluation. Dentists are more prioritising the clinical aspects of the dentures, such as vertical dimension, aesthetical, stability, and denture-bearing area, while patients are more prioritising their satisfaction based on aspects such as aesthetical, mastication, comfort, and phonetic ability. The purpose of this study was to determine the relationship between the stability of maxillary and mandibular denture-bearing area towards the complete denture patient’s satisfaction level. Methods: This study was a cross-sectional study with purposive sampling as the sampling method. The sample of this study was as much as 30 complete denture patient. The patients were interviewed using a questionnaire in each of the patient’s house, to obtain a more honest patient’s satisfaction assessment on the dentures, without being affected by any clinical environment and assessment. The interview was conducted before the clinical evaluation was performed. The statistical analysis was performed using the Fisher’s test. The stability of the denture-bearing area was evaluated clinically. Mastication ability and patient’s comfort were evaluated using a questionnaire. Result: A significant relationship was found between the stability of maxillary denture-bearing area towards mastication (p = 0.012), and the stability of mandibular denture-bearing area towards mastication (p = 0.029); while no significant relationship was found between the stability of maxillary denture-bearing area towards the patient’s comfort (p = 0,051), and the stability of mandibular denture-bearing area towards the patient’s comfort (p = 0,547). Conclusion: There was a relationship between the stability of maxillary and mandibular denture-bearing area towards the patient’s masticatory satisfaction level. However, the relationship between the stability of maxillary and mandibular denture-bearing area towards the patient’s comfort was not found.

The effect of heat polymerized-acrylic resin disinfected with sodium hypochlorite and castor oil (Ricinus communis oil) colour stability Gandhi, Kavita; Ritonga, Putri Welda Utami
Padjadjaran Journal of Dentistry Vol 33, No 2 (2021): July 2021
Publisher : Faculty of Dentistry Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/pjd.vol33no2.20144

Introduction: The 1% sodium hypochlorite and Castor oil are disinfectants which show good bactericidal and fungicidal properties, although sodium hypochlorite is more commonly used. However, the use of 1% sodium hypochlorite could influence the color stability. In other hands, Castor oil does not cause any significant changes on the color stability of the acrylic resin. This research, therefore, was aimed to analyse the effect of heat polymerized acrylic resin base disinfection with sodium hypochlorite and castor oil (Ricinus communis) oil on colour stability. Methods: This research was laboratory experimental research. The total of 30 samples was determined by using Federer’s formula, divided into 3 groups with different disinfection treatment: Group A (1% Sodium Hypochlorite); Group B (10% Castor oil (Ricinus communis); and Group C (distilled water) as control group. The sample was obtained from the master model based on the ADA No.12 specification and was needed to calculate color stability. All data was then statistically analysed with the Kruskal-Wallis test, followed by an LSD test. The measurement of color stability was performed using a UV-Vis Spectrophotometer following the Beer-Lambert Law. Results: Color stability results for group A, B, and C were 0.059 ± 0.038, 0.105 ± 0.041 and 0.136 ± 0.052, consecutively. The Kruskal-Wallis test results obtained a significance level of p = 0.005 (p < 0.05) indicated a difference in the color stability of heat polymerized acrylic resin denture after disinfected with 1% sodium hypochlorite and 10% castor oil. Disinfection of 1% sodium hypochlorite causes the change in the colour stability of the heat polymerized acrylic resin compared to the control group, while disinfection of 10% castor oil did not. There was found a significant difference in the colour stability of the heat polymerized acrylic resin between disinfection with 1% sodium hypochlorite and 10% castor oil (p = 0.027 < 0.05). Conclusions: The colour stability of heat polymerized acrylic resin is not changed after disinfection with 10% Castor (Ricinus communis).

Relationship of clinical assessment of stability and bearing area of maxillary and mandibular denture towards the complete denture wearers satisfaction Ritonga, Putri Welda Utami; Prabakaran, Luveena Loshini
Padjadjaran Journal of Dentistry Vol 19, No 1 (2007): March 2007
Publisher : Universitas Padjadjaran

Introduction:Clinical assessment of complete denture by the dentists may differ from the patient’s satisfaction. Dentists will prioritise the clinical aspects of dentures, while patients will prioritise more on their satisfaction. The purpose of this study was to determine the relationship between the stability and bearing area of maxillary and mandibular denture towards the complete denture wearers satisfaction. Methods: This study was a cross-sectional study with purposive sampling method. The subject of this study was as much as 30 people. The research was conducted in each patient’s house to obtained more honest review of the patient’s satisfaction towards their complete dentures without being affected by any clinical environment, and in accordance to the information of their medical records. All the subjects were interviewed using a questionnaire before a clinical evaluation was conducted. The test analysis used was the Fisher test. Clinical examination was used to assess denture stability and bearing area. Evaluation of the patient’s satisfaction level was performed using a questionnaire regarding mastication and comfort. Results:There was a significant association between the clinical evaluation towards the patient’s satisfaction level which were the stability of maxillary denture towards mastication (p = 0.012); and mandibular denture towards mastication (p = 0.029). Whereas no relationship found between maxillary denturebearing area towards comfort (p = 0,051) and mandibular denture-bearing area towards comfort (p =0,547).Conclusion:Stability of maxillary and mandibular denture affected the patient’s mastication satisfaction, whereas bearing area of maxillary and mandibular denture was not affected the patient’s comfort satisfaction.

The role of laser power and frequency on metal surfaces of adhesive bridge in increasing the bond strength of resin cement Munte, Winnie; Ritonga, Putri Welda Utami; Tamin, Haslinda Z.
Indonesian Journal of Prosthodontic Vol 5 No 1 (2024): June 2024
Publisher : Indonesia Prosthodontic Association

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46934/ijp.v5i1.209

Background Adhesive Bridge is a fixed denture that is attached to the tooth structure, especially the enamel, which has been etched to achieve micromechanical retention. Among other things, adhesive bridge attachment depends on, one important factor is the adhesive bond between the etched enamel and the retained metal. To increase the retention of adhesive bridges, variations of micromechanical surface treatment on metal can be carried out in the form of chemical or electrical etching, air particle abrasion (sandblasting), primary metal, tin plating, silica coating, and lasers. Objective Lasers with different energies, strengths, frequencies, wavelengths, durations and distances can create a thin layer of porous oxide which increases the bonding strength of resin cement for adhesive bridges. The role of laser power and frequency as well as the selection of the right type of resin on the metal surface of the adhesive bridge can increase the bonding strength of the resin cement on the adhesive bridge. Conclusion The selection of the type of surface treatment such as laser and the right type of resin cement can affect the bond strength of the resin cement on the adhesive bridge.

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