Restorative Techniques

• Cleaning with pumice, rubber cup, water, and weak acid ensures the cavity is free of debris and optimizes adhesion of the GIC. This preparation step is crucial for the longevity of the restoration. [Q0003]
• Larger breakdowns in amalgam restorations create areas where bacteria can more easily infiltrate, leading to an increased risk of decay. Therefore, regular monitoring and timely repair of defective margins are essential. [Q0004]
• Placing the retention pin parallel to the outer wall ensures optimal retention and stability of the amalgam restoration. This technique prevents undue stress and potential failure of the restoration. [Q0005]
• Polyacrylic acid cleans the cavity effectively and improves the bond strength of the glass ionomer cement. It removes the smear layer and conditions the dentin for better adhesion. [Q0008]
• A cusp fracture can be detected through patient history, visual examination, radiographs, and percussion testing. These diagnostic methods help in accurately identifying the extent of the fracture. [Q0123]
• Self-tapping threaded pins have shown the highest retention due to their ability to engage the dentin mechanically. This makes them preferable in situations requiring strong retention. [Q0130]
• Finishing composite resin restorations immediately after curing helps achieve optimal surface smoothness and aesthetics. This step ensures the restoration blends well with the natural tooth structure. [Q0133]
• The isthmus is the most common fracture site in Class II amalgam restorations due to insufficient depth and support. Adequate preparation depth and proper condensation techniques can prevent such fractures. [Q0139]
• Composite has multiple advantages over silicate resin, including less shrinkage, surface erosion, and water absorption. These properties contribute to the durability and aesthetic appeal of composite restorations. [Q0140]
• The adjusted occlusal surface should not feel flat to maintain proper occlusal anatomy. Ensuring the correct contour helps in the distribution of occlusal forces and prevents premature wear. [Q0150]
• Pumice and water are used to clean and prepare the dentine surface before applying glass ionomer cement. This process removes debris and enhances the bond between the dentine and the cement. [Q0177]
• Cleaning with pumice and water is the first step to remove surface debris and prepare the tooth for further treatment. This step is essential to ensure proper adhesion of subsequent restorative materials. [Q0178]
• Several small mixes ensure better handling and adaptation around the pins. This technique enhances the strength and integrity of the amalgam restoration. [Q0255]
• Function is the most critical factor when restoring the occlusal part of a tooth to ensure proper mastication and occlusal harmony. Attention to functional anatomy helps prevent occlusal issues and prolongs the restoration’s life. [Q0322]
• Composite resin restorations can be polished immediately after application to ensure a smooth finish and proper adaptation. This step improves the aesthetic outcome and patient satisfaction. [Q0337]
• Self-threaded pins may cause tooth cracking, which is a major disadvantage. Careful consideration and technique are required when using these pins to avoid damage to the tooth structure. [Q0340]
• Class III composite restorations are less prone to stress and wear compared to Class I, II, and IV, making them more durable. This durability makes them an excellent choice for anterior teeth restorations. [Q0341]
• A 2mm reduction is needed to cap a weakened cusp with amalgam for adequate strength. This reduction provides sufficient bulk to resist occlusal forces and prevent fracture. [Q0342]
• The mesial concavity of the root surface complicates the application of the matrix band due to its shape and position. Careful placement and adaptation of the matrix band are necessary to achieve a proper seal and contour. [Q0343]
• Secondary caries is the most uncommon result of moisture contamination in amalgam. More common issues include porosity and compromised physical properties of the restoration. [Q0351]
• Class V lesions are often associated with poor oral hygiene and are typically found at the cervical third of the tooth. Effective plaque control and preventive measures are crucial in managing these lesions. [Q0532]
• Buccal and lingual undercuts provide the best retention for occlusal amalgam restorations in premolars. These undercuts help to mechanically lock the restoration in place. [Q0533]
• Improper cavity preparation is a primary cause of amalgam restoration failure. Ensuring proper design and technique during preparation can significantly improve the longevity of the restoration. [Q0712]
• Less mercury in amalgam results in fewer voids and stronger restoration. Proper condensation techniques are essential to minimize mercury content and enhance the restoration’s properties. [Q0714]
• High copper amalgams form a superior matrix due to secondary reactions involving copper. These reactions improve the physical properties and longevity of the restoration. [Q0715]
• A probe penetration between tooth and amalgam may indicate marginal breakdown but is not always indicative of caries; clinical judgment is needed. Proper evaluation and diagnostic techniques are necessary to determine the cause of penetration. [Q0736]
• Varnish is applied to reduce initial marginal leakage, providing a temporary seal around restorations. This application helps protect the restoration and the tooth during the early stages of setting. [Q0768]
• Etched composite contracts after setting. This contraction can affect the marginal integrity and requires proper management to ensure a durable restoration. [Q0772]
• Matrix bands perform all these functions during restoration. They help to confine the restorative material, shape the restoration, and maintain proper contact points. [Q0777]
• Sulphur oxides typically cause corrosion and discoloration of amalgam restorations. Regular maintenance and polishing can help mitigate these effects. [Q0809]
• Repairing the defect with unfilled resins can be a conservative approach to manage ditching in amalgam fillings. This method preserves the existing restoration while addressing minor defects. [Q0810]
• Overpacking amalgam allows excess mercury to be brought to the surface, which can then be carved away, resulting in a denser, stronger restoration. This technique helps to improve the final properties of the restoration. [Q0821]
• The tooth will appear too narrow when restored to normal alignment. Proper planning and consideration of esthetic principles are essential in such cases. [Q0822]
• A wider marginal gap in amalgam increases the risk of secondary caries due to bacterial infiltration. Ensuring a tight marginal seal is crucial to prevent caries recurrence. [Q0833]
• A dark stain on a composite restoration usually indicates the need for replacement due to potential marginal leakage or staining. Regular monitoring and timely intervention can help maintain the restoration’s integrity. [Q0944]
• Advising the patient that the sensitivity will subside in 4 to 6 weeks is a common management approach for sensitivity after placing amalgam restorations. This reassurance helps in patient compliance and monitoring. [Q0945]
• Placing a ZOE dressing can help to sedate the pulp and address sensitivity. This approach provides a temporary solution while planning further definitive treatment. [Q0954]
• Dental crowns are often the best treatment for extensive caries in elderly patients. Other options are either less effective or more invasive. [Q3033]
• Yes, a fractured cusp can be restored using an enamel pin for support. This technique provides additional retention and stability to the restoration. [Q3074]
• Yes, placing a light cure bonding resin immediately can enhance the strength of the GIC filling. This practice helps in improving the overall durability of the restoration. [Q3183]
• No, amalgam support pins are best placed in the dentin for better retention and strength. Proper pin placement is essential for the success of the restoration. [Q3235]
• Glass ionomer is preferable for treating class V lesions in patients with Sjogren’s syndrome due to its fluoride release and bonding properties. These benefits help in managing the high caries risk associated with this condition. [Q3357]
• Glass ionomer cement requires treatment with polyacrylic acid to improve bonding. This preparation step enhances the adhesion and longevity of the restoration. [Q3437]
• Class II involves a unilateral free-end saddle. This design consideration is important for proper prosthetic planning and function. [Q3468]
• Composite resin restoration is the recommended treatment for dentine caries in an anterior tooth. This material provides excellent aesthetics and durability. [Q3583]
• Zinc phosphate cement is most commonly used as an eluting material. It provides reliable retention and sealing for various types of restorations. [Q3786]
• Glass ionomer cement is generally not preferred for temporary restoration in anterior teeth because it is too brittle. Alternative materials offer better aesthetics and durability. [Q3802]
• GIC and Dentine bonded composite resin are commonly used for retro cavity filling. These materials provide good adhesion and sealing properties. [Q3819]
• Calcium hydroxide is used near the pulp, followed by glass ionomer for dentin replacement and composite for enamel. This combination helps protect the pulp and provides a durable restoration. [Q4071]
• Calcium hydroxide should be used to protect the pulp before etching and applying composite. This step is crucial to prevent pulp damage during the restorative procedure. [Q4072]
• Calcium hydroxide promotes healing and zinc oxide eugenol provides a temporary seal in indirect pulp capping. This combination helps in maintaining pulp vitality while providing a seal against bacterial ingress. [Q4087]
• Yes, amalgam can be placed directly in shallow cavities without a lining if the cavity is shallow enough. This practice simplifies the procedure and maintains the integrity of the restoration. [Q4109]
• Replacing MOD amalgam restorations with layer restorations (glass ionomer and composite) is a common practice. This technique provides a strong and esthetic alternative to traditional amalgam restorations. [Q4349]
• High caries risk, poor isolation, fluoride release, and ease of application are key indications for using glass ionomer fissure sealant. These properties make it suitable for preventive dentistry. [Q4407]
• Accessing non-cavitated distal caries is typically done through the occlusal surface to preserve the marginal ridge. This approach helps maintain the structural integrity of the tooth. [Q4444]
• Polyacid-modified resin composites (PAMRC) are mainly composed of resin and glass ionomer. This composition provides a balance of esthetics and functional properties. [Q4510]
• Accessing through the occlusal surface is standard for small cavities to preserve the integrity of the tooth structure. This method ensures minimal invasion while effectively treating the caries. [Q4601]
• Access through the lingual surface is typically recommended for esthetic reasons. This approach helps in maintaining the appearance of the tooth while addressing the caries. [Q4603]
• Pin-retained amalgam restorations or gold inlays can be good alternatives to crowns in specific cases. These options offer strong support and durability. [Q4619]
• Pins are used with composite to improve retention. This practice enhances the stability and longevity of the restoration. [Q4620]
• PAMRC is called Compomer because it is a hybrid of composite and glass ionomer. This hybrid nature combines the benefits of both materials. [Q4634]
• Primary molars with extensive damage are often restored with stainless steel crowns. These crowns provide excellent durability and protection. [Q4667]
• Proximal caries in dentine are typically managed by direct restoration. This approach effectively removes the caries and restores the tooth’s function. [Q4680]
• RMGIC can be light-cured or self-cured. This versatility allows for different clinical applications. [Q4741]
• Amalgam is suitable for MOD cavities with caries below the contact point due to its strength and durability. This material provides a long-lasting restoration. [Q4746]
• Glass ionomer cement is recommended for the cervical area in patients with high caries incidence due to its fluoride release and adhesion properties. These characteristics help in preventing recurrent caries. [Q4747]
• Retentive grooves can be placed both cervically and occlusally in dentine in class III cavities. This placement enhances the retention and stability of the restoration. [Q4749]
• GIC is often the best material for treating root caries due to its fluoride release and adhesion properties. These benefits help in managing caries progression and maintaining tooth structure. [Q4758]
• Mineral trioxide aggregate (MTA) is considered the safest material for vital pulpotomy. It provides excellent biocompatibility and sealing properties. [Q4766]
• Self-setting zinc oxide cements are primarily used for temporary restorations, not permanent ones. These cements offer ease of use and good sealing for short-term solutions. [Q4783]
• Silicophosphate is composed of zinc phosphate and silicate. This combination provides strong mechanical properties and good adhesion. [Q4800]
• Spontaneous pain, swelling, and tenderness to biting indicate more severe pulpitis, contraindicating indirect pulp capping. Such symptoms require more invasive treatment approaches. [Q4824]
• Parallel posts are generally stronger than tapered posts. Their design offers better retention and distribution of occlusal forces. [Q4874]
• Serrated posts are the most retentive due to increased surface area for bonding. This design helps in securing the post within the tooth structure. [Q4875]
• Tapered threaded posts can cause root fractures and are generally not recommended for single-rooted teeth. Proper post selection is crucial to avoid such complications. [Q4876]
• Temporary crowns are non-toxic and are designed to protect the tooth pulp. They provide a safe interim solution until the permanent restoration is placed. [Q4887]
• Retention grooves are best placed along the axial wall in a Class II cavity for optimal retention. This positioning ensures the restoration remains secure and stable. [Q5850]
• Accessing a mesial cavity on an upper incisor is best done through the lingual surface. This approach helps maintain esthetics and provides direct access to the caries. [Q5856]
• An amalgam carrier is used to carry and place amalgam. This instrument ensures precise and efficient delivery of the restorative material. [Q5965]