Effect of neutral zone technique on marginal bone loss around implant-supported overdentures
Identifieur interne : 001201 ( Main/Exploration ); précédent : 001200; suivant : 001202Effect of neutral zone technique on marginal bone loss around implant-supported overdentures
Auteurs : Mahmoud Darwish [Égypte, Arabie saoudite] ; Mohammad Zakaria Nassani [Arabie saoudite] ; Kusai Baroudi [Arabie saoudite]Source :
- Journal of International Society of Preventive & Community Dentistry [ 2231-0762 ] ; 2015.
Abstract
The aim of this study was to compare changes in marginal bone height around immediately loaded implants supporting a mandibular overdenture constructed according to the neutral zone technique with changes around overdentures constructed according to the conventional methods.
Twelve completely edentulous male patients were randomly allocated to two equal groups of patients. Patients in the first group received conventionally constructed complete dentures and patients in the second group received complete dentures constructed using the neutral zone record. All the patients received two single-piece titanium implants placed bilaterally in the mandibular canine regions using flapless surgery, which were then immediately loaded by the dentures. Marginal bone height was radiographically evaluated at baseline and 6, 12, and 18 months after implant loading.
There was a significant loss in marginal bone height around the supporting implants in each study group. However, no significant differences in marginal bone height were recorded between the study groups over the observation period (
Marginal bone height changes induced by overdentures constructed with neutral zone technique on immediately loaded implants are not different from those changes induced by overdentures constructed with a conventional method.
Url:
DOI: 10.4103/2231-0762.164786
PubMed: 26942118
PubMed Central: 4756568
Affiliations:
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sortKey="Nassani, Mohammad Zakaria" sort="Nassani, Mohammad Zakaria" uniqKey="Nassani M" first="Mohammad Zakaria" last="Nassani">Mohammad Zakaria Nassani</name><affiliation wicri:level="1"><nlm:aff id="aff2">Department of Restorative Dental Sciences, Al-Farabi Colleges, Riyadh, Saudi Arabia</nlm:aff><country xml:lang="fr">Arabie saoudite</country><wicri:regionArea>Department of Restorative Dental Sciences, Al-Farabi Colleges, Riyadh</wicri:regionArea><wicri:noRegion>Riyadh</wicri:noRegion></affiliation></author><author><name sortKey="Baroudi, Kusai" sort="Baroudi, Kusai" uniqKey="Baroudi K" first="Kusai" last="Baroudi">Kusai Baroudi</name><affiliation wicri:level="1"><nlm:aff id="aff2">Department of Restorative Dental Sciences, Al-Farabi Colleges, Riyadh, Saudi Arabia</nlm:aff><country xml:lang="fr">Arabie saoudite</country><wicri:regionArea>Department of Restorative Dental Sciences, Al-Farabi Colleges, 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type="wicri:doubleKey">2231-0762:2015:Darwish M:effect:of:neutral</idno><idno type="wicri:Area/Main/Merge">001204</idno><idno type="wicri:Area/Main/Curation">001201</idno><idno type="wicri:Area/Main/Exploration">001201</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Effect of neutral zone technique on marginal bone loss around implant-supported overdentures</title><author><name sortKey="Darwish, Mahmoud" sort="Darwish, Mahmoud" uniqKey="Darwish M" first="Mahmoud" last="Darwish">Mahmoud Darwish</name><affiliation wicri:level="1"><nlm:aff id="aff1">Department of Prosthodontics, Suez Canal University, Ismailia, Egypt</nlm:aff><country xml:lang="fr">Égypte</country><wicri:regionArea>Department of Prosthodontics, Suez Canal University, Ismailia</wicri:regionArea><wicri:noRegion>Ismailia</wicri:noRegion></affiliation><affiliation wicri:level="1"><nlm:aff id="aff2">Department of Restorative Dental Sciences, Al-Farabi Colleges, Riyadh, Saudi Arabia</nlm:aff><country xml:lang="fr">Arabie saoudite</country><wicri:regionArea>Department of Restorative Dental Sciences, Al-Farabi Colleges, Riyadh</wicri:regionArea><wicri:noRegion>Riyadh</wicri:noRegion></affiliation></author><author><name sortKey="Nassani, Mohammad Zakaria" sort="Nassani, Mohammad Zakaria" uniqKey="Nassani M" first="Mohammad Zakaria" last="Nassani">Mohammad Zakaria Nassani</name><affiliation wicri:level="1"><nlm:aff id="aff2">Department of Restorative Dental Sciences, Al-Farabi Colleges, Riyadh, Saudi Arabia</nlm:aff><country xml:lang="fr">Arabie saoudite</country><wicri:regionArea>Department of Restorative Dental Sciences, Al-Farabi Colleges, Riyadh</wicri:regionArea><wicri:noRegion>Riyadh</wicri:noRegion></affiliation></author><author><name sortKey="Baroudi, Kusai" sort="Baroudi, Kusai" uniqKey="Baroudi K" first="Kusai" last="Baroudi">Kusai Baroudi</name><affiliation wicri:level="1"><nlm:aff id="aff2">Department of Restorative Dental Sciences, Al-Farabi Colleges, Riyadh, Saudi Arabia</nlm:aff><country xml:lang="fr">Arabie saoudite</country><wicri:regionArea>Department of Restorative Dental Sciences, Al-Farabi Colleges, Riyadh</wicri:regionArea><wicri:noRegion>Riyadh</wicri:noRegion></affiliation></author></analytic><series><title level="j">Journal of International Society of Preventive & Community Dentistry</title><idno type="ISSN">2231-0762</idno><idno type="eISSN">2250-1002</idno><imprint><date when="2015">2015</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><sec id="st1"><title>Aim:</title><p>The aim of this study was to compare changes in marginal bone height around immediately loaded implants supporting a mandibular overdenture constructed according to the neutral zone technique with changes around overdentures constructed according to the conventional methods.</p></sec><sec id="st2"><title>Materials and Methods:</title><p>Twelve completely edentulous male patients were randomly allocated to two equal groups of patients. Patients in the first group received conventionally constructed complete dentures and patients in the second group received complete dentures constructed using the neutral zone record. All the patients received two single-piece titanium implants placed bilaterally in the mandibular canine regions using flapless surgery, which were then immediately loaded by the dentures. Marginal bone height was radiographically evaluated at baseline and 6, 12, and 18 months after implant loading.</p></sec><sec id="st3"><title>Results:</title><p>There was a significant loss in marginal bone height around the supporting implants in each study group. However, no significant differences in marginal bone height were recorded between the study groups over the observation period (<italic>P</italic> > 0.05).</p></sec><sec id="st4"><title>Conclusion:</title><p>Marginal bone height changes induced by overdentures constructed with neutral zone technique on immediately loaded implants are not different from those changes induced by overdentures constructed with a conventional method.</p></sec></div></front><back><div1 type="bibliography"><listBibl><biblStruct><analytic><author><name sortKey="Gosavi, Ss" uniqKey="Gosavi S">SS Gosavi</name></author><author><name sortKey="Ghanchi, M" uniqKey="Ghanchi M">M Ghanchi</name></author><author><name sortKey="Malik, Sa" uniqKey="Malik S">SA Malik</name></author><author><name sortKey="Sanyal, P" uniqKey="Sanyal P">P Sanyal</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Mccord, Jf" uniqKey="Mccord J">JF McCord</name></author><author><name sortKey="Smith, P" 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