Since overdentures are constructed over existing teeth or root structure,the overdenture gives support to the natural tooth stops therefore providing a stable base sitting for the overdenture,and improving the occlusion.This is because the denture does not sit on the soft movable mucousa, but it sits on the tooth abutments enabling the denture to withstand greater occlusal load without movement.
It also preserves the alveolar bone,reason being that not all the teeth have been removed therefore the alveolar bone is still supporting the remaining teeth. Resulting in the rate of resorption being minimised.
In addition to this the benefits of an overdenture for the patient; - it improves proprioception (the unconscious perception of movement and spatial orientation within the body) leads to better neuromascular control which in turn helps to regulate the biting force over the denture. -exttaction is avoided so this has a psychological effect on the patient. -it can almost be used universally -if the overdenture fails then the abutment teeth can be extracted and the overdenture can be realigned and used as a conventional complete denture.
Over dentures have the following advantages to the patient, decreased bone resorption; reduced or eliminated prosthesis movement; better esthetics; improved tooth position; better occlusion, including improved occlusal load direction, increased occlusal function and maintenance of the occlusal vertical dimension. overdentures also improve phonetics,
When the forces exerted on the abutment teeth supporting the denture are with inthe physiologic limits, they exert tensile stresses on the oblique group of fibres of the periodontal ligament which in turn are stimulated to deposit new bunble bone •Thus it helps in bone repair mechanism and preservation of the residual alveolar ridge. •They act as vertical stops for the denture base. •Consider a case where the complete maxillary debture is opposed by naturalmandibular anterior teeth. In this case, due to forces exerted on the maxillarydenture there is excessive resorption of the residual alveolar ridge andhypertrophy of the soft tissues. This can be prevented by retaining few maxillar anterior teeth which would serve os a support for the overdenture. •Increased support and stability to the denture •Psychological benefit to the patient since all the tooth are not extracted/lost and the feeling that few natural teeth are still remaning can be a bosst for the psychology of the patient.•Results in fewer post insertion problems •If the periodontal ligament of the abutment tooth are viable then they help tomaintain proprioceptive responses and neuromuscular coordination which is notthe case with complete dentures. •Increased retention can be obtained with attachments fixed to the cast copings. •Convertibility: easy to adjust with the use of auto-polymerising resins•Preserves the harmony of the arch form.
1.PRESERVATION OF THE RIDGE RETAINING ROOTS AND PERIODONTAL TISSUES OF ABUTMENT TEETH REDUCES RESORPTION OF THE SURROUNDING BONE. 2. MINIMISES HORIZONTAL FORCES ON THE ABUTMENT TEETH. th reduction in crown length of the abutment teeth and the production of a dome shape to the root face, reduces the mechanical advantage of potentially damaging horizontal forces. prolonging life span of abutment teeth. 3. proprioception better appreciation of food and more precise control of mandibular movements 4. CORRECTION OF OCCLUSION AND AESTHETICS over dentures have an advantage over partial dentures if abutment teeth are not aesthetically pleasing or not ideal for occlusion. the crowns can be removed & overdentures can therefore cover the roots and one can freely arrange the artificial teeth to be aesthetic. 5. DENTURE RETENTION denture retentoion by means of precision attachment only where the roots have firm bone support. or, placing rare earth magnets in the overdenture, with the keepers incorperated in the abutment teeth (inexpensive option) 6. psychological benefits
These denture are more stable than conventional dentures while being less expensive than fixed prostheses. An ideal path of insertion is also easily eastablished with overdentures and the possibility of the gag reflex associated with removable dentures is minimized. Other benifits of overdentures include improved aesthetics and masticatory efficacy.
Over-dentures help to relieve pressure and stress when masticating, it aids in the prevention of pain spots and irritation. If the patient is fortunate to still have a couple of natural teeth that can be used, all that is required is for the remaining dentition to be reshaped to act as abutments to fit an overdenture.
It is a complete or partial denture prosthesis constructed over the existing teeth or root structure. However, it sustain teeth as part of the redidual ridge, also reduce in the rate of resorption and adds to controlling patient's skills in handling the denture.
A simple approach to the problem patient In the past, patients with congenital defects, such as cleft palate, partial anodontia, microdontia, amelogenesis imperfecta, and so on, posed a rather detailed, lengthy, and expensive course of treatment. With the advent of the overdenture, a reasonable, relatively fast, and inexpensive mode of treatment became possible. These patients can now be restored to function, aesthetics, and comfort utilizing the overdenture concept.
Since overdentures are constructed over existing teeth or root structure,the overdenture gives support to the natural tooth stops therefore providing a stable base sitting for the overdenture,and improving the occlusion.This is because the denture does not sit on the soft movable mucousa, but it sits on the tooth abutments enabling the denture to withstand greater occlusal load without movement.
ReplyDeleteIt also preserves the alveolar bone,reason being that not all the teeth have been removed therefore the alveolar bone is still supporting the remaining teeth. Resulting in the rate of resorption being minimised.
In addition to this the benefits of an overdenture for the patient;
ReplyDelete- it improves proprioception (the unconscious perception of movement and spatial orientation within the body) leads to better neuromascular control which in turn helps to regulate the biting force over the denture.
-exttaction is avoided so this has a psychological effect on the patient.
-it can almost be used universally
-if the overdenture fails then the abutment teeth can be extracted and the overdenture can be realigned and used as a conventional complete denture.
Over dentures have the following advantages to the patient, decreased
ReplyDeletebone resorption; reduced or eliminated
prosthesis movement; better
esthetics; improved tooth position;
better occlusion, including
improved occlusal load direction,
increased occlusal function and
maintenance of the occlusal vertical
dimension. overdentures also improve
phonetics,
When the forces exerted on the abutment teeth supporting the denture are with inthe physiologic limits, they exert tensile stresses on the oblique group of fibres of the periodontal ligament which in turn are stimulated to deposit new bunble bone
ReplyDelete•Thus it helps in bone repair mechanism and preservation of the residual alveolar ridge.
•They act as vertical stops for the denture base.
•Consider a case where the complete maxillary debture is opposed by naturalmandibular anterior teeth. In this case, due to forces exerted on the maxillarydenture there is excessive resorption of the residual alveolar ridge andhypertrophy of the soft tissues. This can be prevented by retaining few maxillar anterior teeth which would serve os a support for the overdenture.
•Increased support and stability to the denture
•Psychological benefit to the patient since all the tooth are not extracted/lost and the feeling that few natural teeth are still remaning can be a bosst for the psychology of the patient.•Results in fewer post insertion problems
•If the periodontal ligament of the abutment tooth are viable then they help tomaintain proprioceptive responses and neuromuscular coordination which is notthe case with complete dentures.
•Increased retention can be obtained with attachments fixed to the cast copings.
•Convertibility: easy to adjust with the use of auto-polymerising resins•Preserves the harmony of the arch form.
1.PRESERVATION OF THE RIDGE
ReplyDeleteRETAINING ROOTS AND PERIODONTAL TISSUES OF ABUTMENT TEETH REDUCES RESORPTION OF THE SURROUNDING BONE.
2. MINIMISES HORIZONTAL FORCES ON THE ABUTMENT TEETH.
th reduction in crown length of the abutment teeth and the production of a dome shape to the root face, reduces the mechanical advantage of potentially damaging horizontal forces. prolonging life span of abutment teeth.
3. proprioception
better appreciation of food and more precise control of
mandibular movements
4. CORRECTION OF OCCLUSION AND AESTHETICS
over dentures have an advantage over partial dentures if abutment teeth are not aesthetically pleasing or not ideal for occlusion. the crowns can be removed & overdentures can therefore cover the roots and one can freely arrange the artificial teeth to be aesthetic.
5. DENTURE RETENTION
denture retentoion by means of precision attachment only where the roots have firm bone support. or, placing rare earth magnets in the overdenture, with the keepers incorperated in the abutment teeth (inexpensive option)
6. psychological benefits
1.Over dentures are a very effective means of stabilizing full lower dentures, especially for patients who have no lower alveolar ridges.
ReplyDelete2.Over dentures feel and look natural causing the patient to forget that he/she even has dentures.
3.Restores natural chewing capacity.
4.Eliminates pain of ill fitting dentures.
5.No need for adhesives.
6.Maintains integrity of facial structures by preserving the remaining bone.
7.Restores lost lip support around the mouth, and eliminates wrinkles.
8.Option of leaving the palate of the mouth uncovered.
9.Restores natural chewing capacity and improves digestion.
These denture are more stable than conventional dentures while being less expensive than fixed prostheses. An ideal path of insertion is also easily eastablished with overdentures and the possibility of the gag reflex associated with removable dentures is minimized. Other benifits of overdentures include improved aesthetics and masticatory efficacy.
ReplyDeleteThis comment has been removed by the author.
ReplyDeleteOver-dentures help to relieve pressure and stress when masticating, it aids in the prevention of pain spots and irritation. If the patient is fortunate to still have a couple of natural teeth that can be used, all that is required is for the remaining dentition to be reshaped to act as abutments to fit an overdenture.
ReplyDeleteIt is a complete or partial denture prosthesis constructed over the existing teeth or root structure. However, it sustain teeth as part of the redidual ridge, also reduce in the rate of resorption and adds to controlling patient's skills in handling the denture.
ReplyDeleteA simple approach to the problem patient
ReplyDeleteIn the past, patients with congenital defects, such as cleft palate, partial anodontia, microdontia, amelogenesis imperfecta, and so on, posed a rather detailed, lengthy, and expensive course of treatment. With the advent of the overdenture, a reasonable, relatively fast, and inexpensive mode of treatment became possible. These patients can now be restored to function, aesthetics, and comfort utilizing the overdenture concept.
Are removable partial dentures comfortable?
ReplyDeleteThe newer flexible removable partialdentures (RPDs) are being used more and more commonly for temporary ,or on occasion permanent, replacement of missing teeth. These dentures are providing a comfortable and successful alternative to traditional RPDs.Jain Dental Clinic promises to deliver quality dental care treatment in Indirapuram, Dentist in East Delhi