An Intraoral Appliance to Retract the Protrusive Premaxilla in Bilateral Cleft Lip Patients Presenting Late for Primary Lip Repair

2018 ◽  
Vol 55 (4) ◽  
pp. 622-625 ◽  
Author(s):  
Nandagopal Vura ◽  
Rajasekhar Gaddipati ◽  
Yudhistar Palla ◽  
Pranay Kumar
Keyword(s):  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Treatment Time ◽  
Glass Ionomer Cement ◽  
Nickel Titanium ◽  
Glass Ionomer ◽  
Retention Period ◽  
The Mean ◽  
Nasoalveolar Molding ◽  
Ionomer Cement

The protruding and deviated premaxilla in bilateral complete cleft lip and palate (BCL/P) patients causes a perplexing problem in achieving a tension-free primary lip closure. An innovative noninvasive active intraoral Fixed Pre-Surgical Cleft Orthopedic (FPSCO) appliance is presented that has enabled to successfully reposition the premaxillary segment to a more favorable position prior to the surgical repair in 4 BCL/P patients, who reported late for treatment with a mean age of 18 ± 3 months. All the patients had at least 1 deciduous tooth erupted in 3 cleft segments, 1 premaxilla (PM), and 2 lateral maxillary (LM) segments. This innovative approach is a noninvasive method of getting the cleft segments closer prior to chelioplasty, where conventional presurgical nasoalveolar molding (PNAM) is not possible, which needs to be done early in life as it requires circulating maternal estrogen levels to achieve results preferably possible in patients younger than 3 to 6 months. Bonding to erupted teeth with glass ionomer cement was implemented to secure the appliance. Nickel-titanium (Ni-Ti) closed-coil springs were used that delivered continuous forces of 150 g/5 oz per side to retract the premaxillary segment. The mean active period of treatment time was 3.5 ± 1.6 months and the retention period was 1.2 ± 0.6 months, following which cheiloplasty was performed.

Retentiveness of Various Luting Agents Used With Implant-Supported Prosthesis: An In Vitro Study

2014 ◽  
Vol 40 (6) ◽  
pp. 649-654 ◽  
Author(s):  
Pooja Garg ◽  
Malesh Pujari ◽  
D. R. Prithviraj ◽  
Sumit Khare
Keyword(s):  
Zinc Oxide ◽  
Zinc Phosphate ◽  
Glass Ionomer Cement ◽  
Glass Ionomer ◽  
Mean Values ◽  
Pull Out ◽  
Zinc Oxide Eugenol ◽  
Bonferroni Test ◽  
The Mean ◽  
Ionomer Cement

Desired retrievability of cemented implant-supported fixed prosthesis makes the retentive strength of cementing agents an important consideration. The aim of the study was to evaluate the retentiveness of purposely designed implant cement and compare its retentiveness with dental cements that are commonly used with implant systems. Ten implant analogs were embedded in auto-polymerizing acrylic resin blocks and titanium abutments were attached to them. Fifty standardized copings were waxed directly on the abutment and casted. The cements used were: (1) resin-bonded zinc oxide eugenol cement, (2) purposely designed implant cement, (3) zinc phosphate cement, (4) zinc polycarboxylate cement, and (5) glass ionomer cement. After cementation, each sample was subjected to a pull-out test using universal testing machine and loads required to remove the crowns were recorded. The mean values and standard deviations of cement failure loads were analyzed using ANOVA and Bonferroni test. The mean values (± SD) of loads at failure (n = 10) for various cements were as follows (N): resin-bonded zinc oxide eugenol cement 394.62 (± 9.76), Premier implant cement 333.86 (± 18.91), zinc phosphate cement 629.30 (± 20.65), zinc polycarboxylate cement 810.08 (± 11.52), and glass ionomer cement 750.17 (± 13.78). The results do not suggest that one cement type is better than another, but they do provide a ranking order of the cements regarding their ability to retain the prosthesis and facilitate easy retrievability.

A Rapid Solution to Align the Severely Malpositioned Premaxilla in Bilateral Cleft Lip and Palate Patients

2008 ◽  
Vol 45 (3) ◽  
pp. 229-231 ◽  
Author(s):  
Amornpong T. Vachiramon ◽  
John N. Groper ◽  
Simon Gamer
Keyword(s):  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Treatment Time ◽  
Bilateral Cleft Lip ◽  
Nasoalveolar Molding ◽  
Presurgical Orthopedics ◽  
Palate Patient

Objective: To describe a laboratory modification of the maxillary cast to make an improved nasoalveolar molding plate used in presurgical orthopedics for infants with bilateral cleft lip and palate. Conclusions: Modifying the nasoalveolar molding plate may reduce the presurgical treatment time for the bilateral cleft lip and palate patient.

scholarly journals Three Cements Used for Orthodontic Banding of Porcelain Molars

2007 ◽  
Vol 77 (1) ◽  
pp. 94-99 ◽  
Author(s):  
Tracy Herion ◽  
Jack L. Ferracane ◽  
David A. Covell
Keyword(s):  
Bond Strength ◽  
Fatigue Testing ◽  
Testing Machine ◽  
Glass Ionomer Cement ◽  
Glass Ionomer ◽  
Survival Times ◽  
Mechanical Fatigue ◽  
Denture Teeth ◽  
The Mean ◽  
Ionomer Cement

Abstract Objective: Objectives of this study were to (1) compare the mean shear-peel bond strength of orthodontic bands luted to porcelain molar denture teeth with glass ionomer cement (GIC), resin-modified glass ionomer cement (RMGIC), or compomer cement; (2) assess the amount of cement remaining on the teeth after debanding; and (3) compare the survival times of the cemented bands subject to mechanical fatigue. Materials and Methods: Sixty banded denture teeth (20 per cement group) were used to determine shear-peel bond strength, and 30 banded denture teeth (10 per cement group) were used to determine fatigue survival time. Shear-peel bond strength was determined with a universal testing machine, and groups were compared by one-way analysis of variance. The amount of cement remaining on the teeth after band removal was scored, and a chi-square test was used to compare groups. Fatigue testing was conducted in a ball mill, and a log-rank test was used to compare differences in survival times. Results: No differences were found in mean shear-peel bond strength among the three groups. The amount of cement remaining on the teeth varied between the compomer and GIC groups (P = .01), with more compomer cement remaining relative to GIC. The mean survival times of bands cemented with compomer or RMGIC were longer than for bands cemented with GIC (P < .001). Conclusion: The findings show that on porcelain teeth the band cements have comparable mean shear-peel bond strengths, but that band retention with RMGIC and compomer cement are superior to GIC when subjected to simulated mechanical fatigue.

Prepubertal Midface Growth in Unilateral Cleft Lip and Palate following Alveolar Molding and Gingivoperiosteoplasty

2004 ◽  
Vol 41 (4) ◽  
pp. 375-380 ◽  
Author(s):  
Catherine T. H. Lee ◽  
Barry H. Grayson ◽  
Court B. Cutting ◽  
Lawrence E. Brecht ◽  
Wen Yuan Lin
Keyword(s):  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Permutation Test ◽  
Long Term Effect ◽  
Significant Difference ◽  
History Of ◽  
The Mean ◽  
Late Start ◽  
Nasoalveolar Molding

Objectives To examine the long-term effect of nasoalveolar molding and gingivoperiosteoplasty (modified Millard type) on midface growth at prepuberty. Procedures In this retrospective study, 20 consecutive patients with a history of complete unilateral cleft lip and palate were evaluated. Ten patients had nasoalveolar molding and gingivoperiosteoplasty performed at lip closure; 10 control patients had nasoalveolar molding but no gingivoperiosteoplasty because of late start in treatment or poor compliance. A single surgeon (C.B.C.) performed all surgical procedures. Standardized lateral cephalometric radiographs were evaluated at two time periods: T1 at pre–bone-grafting age and T2 at prepuberty age. Superimposition and cephalometric analysis were undertaken to investigate the two groups. Two cephalometric reference planes, sella-nasion and basion-nasion, were used to assess the vertical and sagittal relations of the midface (ANS-PNS). The reference landmarks were procrustes fitted. The mean location and variance of ANS and PNS landmarks were computed. All results were analyzed by permutation test. Results No significant difference in mean location or variance of ANS-PNS in both vertical and sagittal planes at both T1 and T2 periods were found between the two groups (p > .05). Conclusions The results suggested that midface growth in sagittal or vertical planes (up to the age of 9 to 13 years) were not affected by presurgical alveolar molding and gingivoperiosteoplasty (Millard type).

scholarly journals Simplified Fixed Technique for Correction of Anterior Crossbite: A Case Series

2021 ◽  
Vol 16 (1) ◽  
pp. 77-85
Author(s):  
Nik Mukhriz Nik Mustapha ◽  
Asma Ashari
Keyword(s):  
Early Intervention ◽  
Composite Resin ◽  
Glass Ionomer Cement ◽  
Case Series ◽  
Nickel Titanium ◽  
Glass Ionomer ◽  
Short Span ◽  
Functional Shift ◽  
Ionomer Cement

Anterior crossbites would normally require early intervention, especially when associated with mandibular displacements. The intervention would usually commence in children around the age of eight and nine, where treatment could be a challenge at this age. Therefore, a simple and quick treatment to this malocclusion would be desirable. This case series illustrates two cases of anterior crossbite with a functional shift that were successfully corrected using a simplified fixed technique, which involved a short-span nickel-titanium (Ni-Ti) aligning round archwire, composite resin and glass ionomer cement (GIC).

Influence of Silver Diamine Fluoride Treatment on the Microtensile Bond Strength of Glass Ionomer Cement to Sound and Carious Dentin

2020 ◽  
Vol 45 (5) ◽  
pp. E271-E279
Author(s):  
M Jiang ◽  
ML Mei ◽  
MCM Wong ◽  
CH Chu ◽  
ECM Lo
Keyword(s):  
Bond Strength ◽  
Artificial Saliva ◽  
Glass Ionomer Cement ◽  
T Test ◽  
Glass Ionomer ◽  
Microtensile Bond Strength ◽  
Silver Diamine Fluoride ◽  
Significant Difference ◽  
The Mean ◽  
Ionomer Cement

Clinical Relevance This study provides valuable information about the influence of silver diamine fluoride (SDF) treatment on the microtensile bond strength of glass ionomer cement (GIC) to dentin. SUMMARY Objectives: To investigate the influence of silver diamine fluoride (SDF) treatment on the microtensile bond strength (mTBS) of glass ionomer cement (GIC) to sound and artificial carious dentin. Methods: Thirty dentin blocks prepared from 30 noncarious human molars were randomly allocated into either the sound (Gp1) or artificial carious dentin (Gp2) groups. A microbiological method was adopted to create artificial dentin caries lesions in Gp2 specimens. Each dentin block was sectioned into two halves perpendicularly, and each pair of block halves was randomly assigned to two subgroups to receive topical application of SDF (Gp1-SDF, Gp2-SDF) or water as control (Gp1-water, Gp2-water). An encapsulated GIC was bonded to the exposed dentin surfaces 14 days after the SDF/water application. After immersion for 7 days in artificial saliva, the GIC-dentin specimens were sectioned into beams for mTBS testing. Failure mode was examined after the mTBS test. Results: There was no significant difference in the mean mTBS values between the SDF and control subgroups (Gp1-SDF vs Gp1-water, 10.57±1.6 MPa vs 10.20±1.8 MPa; Gp2-SDF vs Gp2-water, 6.14±2.2 MPa vs 5.97±2.3 MPa; paired t-test, p>0.05). However, the mean mTBS value of the sound dentin group was significantly higher than that of the carious dentin group, irrespective of whether SDF was applied prior to GIC bonding (independent t-test, p<0.001). Proportionally more cohesive failures occurred in the sound dentin groups (Gp1-SDF, 48.4%; Gp1-water, 42.9%) compared with the carious dentin groups (Gp2-SDF, 15.6%; Gp2-water, 9.8%; p<0.05). Conclusions: SDF treatment had no significant influence on the mTBS of GIC to dentin. Compared with sound dentin, dentin with caries had lower mTBS to GIC.

Assessment of Treatment Outcome of Presurgical Nasoalveolar Molding in Patients With Cleft Lip and Palate and Its Postsurgical Stability

2020 ◽  
Vol 57 (6) ◽  
pp. 700-706
Author(s):  
Neha Bhutiani ◽  
Tulika Tripathi ◽  
Mahesh Verma ◽  
Padam Singh Bhandari ◽  
Priyank Rai
Keyword(s):  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Surgical Repair ◽  
Treatment Time ◽  
Percentage Increase ◽  
Morphological Parameters ◽  
Arch Form ◽  
Width Difference ◽  
Nasoalveolar Molding

Objective: To analyze the effects of presurgical nasoalveolar molding (PNAM) in newborns with cleft lip and palate and evaluate its postsurgical stability at 1-year follow-up using a nasal stent. Design: Prospective clinical trial. Setting: Department of Orthodontics, Maulana Azad Institute of Dental Sciences, Delhi. Patients: Patients with cleft lip and palate of 0 to 6 months. Sample size 25 recruited, 16 satisfactorily completed the procedure. Interventions: Presurgical nasoalveolar molding done as indicated in all the patients. Postsurgical external nasal stents were given for 1 year to maintain the nasal correction. Main Outcome Measures: Changes in cleft defect and maxillary arch were recorded pre- and post-PNAM. Changes in nasal morphological parameters assessed pre- and post-PNAM and 1 year after surgical repair following the use of nasal stent. Results: There was a significant reduction in cleft defect assessed both intraorally ( 4.16 mm) and extra orally ( 4.42 mm) at the end of PNAM therapy (average treatment time 4 months). The nasal morphology improved with an increase in columella height (1.5 mm) and reduction in columella width. Bialar width reduced (2.90 mm) with an increase in nostril height ( 2.10 mm). Better symmetry was achieved in all cases as the nostril height and width difference changed significantly pre- and post-nasoalveolar molding. The percentage increase in columella height was greater for infants less than 6 weeks. Conclusions: Presurgical nasoalveolar molding considerably reduces the cleft gap and improves arch form making surgical union easier along with improved nasal morphology which can be maintained at 1-year postsurgery by use of a postsurgical external nasal stent.

Repairing Collagen in Dentin Carious Lesions. Influence of Sealing the Material: A Morphometric Study

2010 ◽  
Vol 34 (3) ◽  
pp. 223-228 ◽  
Author(s):  
Sérgio Luiz Pinheiro ◽  
Paula Cristina Gallassi ◽  
Talita Costa Saldanha ◽  
Iris Nogueira Bincelli ◽  
Pedro Paulo Barros ◽  
...  
Keyword(s):  
Calcium Hydroxide ◽  
Glass Ionomer Cement ◽  
Morphometric Study ◽  
Test Results ◽  
Glass Ionomer ◽  
Adhesive Systems ◽  
Carious Lesions ◽  
The Mean ◽  
Ionomer Cement ◽  
Sirius Red

Objective: The aim of the present work was to morphometrically evaluate collagen in carious lesions sealed with calcium hydroxide, adhesive systems, glass ionomer cement, and an antibacterial cement. Study design: Samples of infected and affected dentin were stained with Sirius Red (SR). The areas intensively stained with SR were delimited, and the percentage of these areas was measured by blind calibrated examiners. The mean results were subjected to the Kruskal-Wallis test. Results: The affected dentin sealed with Ca(OH)2 showed a better organization of the collagen in relation to the adhesive systems Prime & Bond (p= .0159) and Adhese (p<0.0001). The affected dentin sealed with Prime & Bond promoted better increase of organized collagen areas in relation to Adhese (p = 0.0004). The infected dentin sealed with glass ionomer cement (p = 0.0018) or antibacterial cement (p = 0.0004) brought a significant increase in the organized collagen areas. Conclusions: Ca(OH)2 is indicated to seal affected dentin and glass ionomer cement and antibacterial cement may be used for treatment of infected dentin. The addition of antibiotics did not influence the restoration of the infected dentin.

scholarly journals Pengaruh Perendaman Jus Jeruk Terhadap Kekuatan Tekan Glass Ionomer Cement dan Resin Modified Glass Ionomer Cement

2021 ◽  
Vol 9 (1) ◽  
pp. 1-9
Author(s):  
Claudia Florencita Ediharsi ◽  
Dedi Sumantri ◽  
Arymbi Pujiastuty
Keyword(s):  
Compressive Strength ◽  
Artificial Saliva ◽  
Glass Ionomer Cement ◽  
Control Group ◽  
Glass Ionomer ◽  
Control Group Design ◽  
Resin Modified Glass Ionomer ◽  
Gold Label ◽  
The Mean ◽  
Ionomer Cement

Glass ionomer cement and resin modified glass ionomer cement are one of the restoration materials that are widely used by dentists. Its presence in the oral cavity causes glass ionomer cement and resin modified glass ionomer cement often in contact with food and beverages such as tangerine juice which can affect the compressive strength. The purpose of this study is to determine the effect of immersion in tangerine juice towards the compressive strength of glass ionomer cement and resin modified glass ionomer. This study was a true experimental with a post test only with control group design. Samples were made from GC Fuji 9 GP and GC Gold Label 2 LC with 36 samples each. Samples were divided into two groups. The first group (18 samples of GC Fuji 9 GP and 18 samples of GC Gold Label 2 LC) was immersed in tangerine juice for 24 hours in an incubator at 37°C. The second group (18 samples of GC Fuji 9 GP and 18 samples of GC Gold Label 2 LC) as a control was immersed in artificial saliva for 24 hours in an incubator at 37°C. The compressive strength was determined using a compression machine. The results showed that the mean compressive strength of glass ionomer cement immersed in tangerine juice was 14,03±0,48 MPa and immersed in artifical saliva was 52,08±0,67 MPa. The mean compressive strength of resin modified glass ionomer cement immersed in tangerine juice was 58,98±0,97 MPa and immersed in artifical saliva was 68,28±0,67 MPa. Data were analyzed with Independent T-test showing the results of p<0.05. The conclusion of this study was that there was an effect of immersion in tangerine juice towards the decreasing of the compressive strength of glass ionomer cement and resin modified glass ionomer cement.

scholarly journals Evaluating the Antimicrobial Properties of Glass Ionomer, Zinc Phosphate, and Polycarboxylate Cement

2021 ◽  
Vol 24 (1) ◽  
pp. 24-35
Author(s):  
Rahil Mirzaei ◽  
◽  
Mehdi Javad Chavosh ◽  
Mehdi Rajabnia ◽  
Valiollah Arash ◽  
...  
Keyword(s):  
Zinc Phosphate ◽  
Antibacterial Effect ◽  
Culture Media ◽  
Glass Ionomer Cement ◽  
Inhibition Zone ◽  
Glass Ionomer ◽  
Significant Difference ◽  
Foreign Counterpart ◽  
The Mean ◽  
Ionomer Cement

Background and Aim: There exists increased demineralization risk of enamel adjacent to fixed orthodontic attachments by cariogenic bacterias (e.g., Streptpcoccus mutans, Streptpcoccus sobrinus) and inadequate data about commonly used orthodontic cements. Thus, we evaluated the antibacterial effects of three common domestic and foreign orthodontic cements (Glass ionomer, Zinc phosphate, & polycarboxylate) on two cariogenic pathogens (S. mutans & S. sobrinus). Methods & Materials: In this laboratory study, after culturing two standard strains of Streptococcus mutans and Subrinus bacteria and concentrating and diluting them, a direct contact test was used to evaluate the antibacterial properties of types of cement. The study groups (n=5) included the following: three types of glass ionomer resilience cement, Hoffman’s zinc phosphate and Hoffman’s polycarboxylate, and three glass ionomer cement, zinc phosphate, and carboxylate from Aria Dent factory in Iran. The acquired data were analyzed using SPSS v. 17. Ethical Considerations: The present study was approved by Babol University of Medical Sciences (Code: MUBABOL.REC.1391.7).Results: In both types of culture media, containing Streptococcus mutans and Streptococcus subrinus bacteria, there was a significant difference between culture media containing 3 groups of cements respecting bacterial growth inhibition zone (P<0.001). In general, The mean diameter of the inhibition zone was greater in Iranian polycarboxylate, compared to its foreign counterpart (P<0.001). Results: Regarding to zone of inhibition, there was statistically significant difference between three tested cements in both S.mutans and S.sobrinus culturing media (P<0.001). The mean diameter of inhibition zone was greater for Iranian polycarboxylate compared to its foreign counterpart (P<0.001). Conclusion: Glass ionomer cement demonstrated better antibacterial effect compared to zinc phosphate and polycarboxylate cements. There was also greater antibacterial effect of three tested cements on S.sobrinus than S.mutans. Iranian polycarboxylate showed stronger inhibition on both mentioned bacterias compared to the foreign one.

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