5-Year Follow-up of first 831 CeraRoot dental Implants

CeraRoot implants seem to better preserve the surrounding bone. The implants are more easy to maintain with no prosthetic sub-gingival connections. Being one-piece structure, there are no gaps where bacteria can grow.

The following clinical case performed in 2006 (7 years follow-up), is an example of how CeraRoot implants are capable to resist difficult intra-oral conditions such as high ingestion of processed sugar that cause destroy natural teeth. In this case, CeraRoot implants have not lost bone around the implants and the surrounding gum is as healthy as the gum surrounding the natural dentition.

CASE 1

CASE 1

    Pic. 1: The patient has a remaining root of upper first right premolar that will be extracted on same day of implant placement. Lower right second premolar will also be extracted due to root fracture and immediately replaced with a zirconia implant.
  Pic. 2: Day of the surgery two implants CeraRoot 14 – 12mm long are selected to replace upper right first premolar and second right lower premolar.
   Pic. 3: Day of cementing the definitive all-ceramic crowns (14 & 45) on the CeraRoot implants.
    Pic. 4: Day of cementing the definitive all-ceramic crown (14) on the CeraRoot implant at 4 months post-op.
   Pic. 5: 7 years after the crowns were cemented, the patient has several teeth destructed due to high ingestion of processed sugar. Upper right second premolar and first molar need to be extracted. The gum color around the CeraRoot implant is pink which indicates good peri-implant health.
   Pic. 6: 7 years after, the upper CeraRoot implant has suffered some tissue recession, just as much as the canine, which could be caused by an incorrect brushing technique. The implant on the lower jaw has not had any change. Note the extrusion of the first lower right molar due to missing upper teeth.
  Pic. 7: The picture above clearly reflects how CeraRoot implants preserve surrounding bone even in difficult oral environments.

CASE 2

CASE 2

 560871_3976637065931_192387620_n This patient has metal sensitivity and does not want to be restored with metal (titanium) implants. She has good amount of bone in height and in width to place one-piece CeraRoot implants.
 391204_3976648186209_1725728986_n  The implants were placed and a fixed temporary bridge was placed in order to protect the implants during the healing time.
 600080_3976652666321_753118392_n
 526969_3976714907877_27061019_n
 389089_3976648626220_1122673001_n
 1981748_10202760516245598_1223790097_n
 409675_3976648426215_903276653_n  7 years after the surgery, it can be seen that the gingival tissue and the bone level around the implants, have been maintained.
 487963_3976637385939_1721896698_n

CASE 3

CASE 3

 270657_10200545244505189_500169078_n
 943415_10200545245065203_1136008696_n
 417947_10200545243585166_666878330_n Some bone augmentation is performed on the buccal to give more volume to the maxilla.
 945194_10200545242545140_860478091_n
 600773_10200545241145105_846345005_n 3 months post-surgery, it can be seen the shoulder of the implant at gum level.
 603639_10200545241785121_29420206_n The color of the gum is very healthy.
 946381_10200545238265033_1057177323_n
 10277168_10202996188897267_6442772677696180312_n This is the situation 5 years after the surgery. There are some stains in the teeth but the shape and color of the gums remain healthy.
 394331_10200545239705069_1731764404_n  The bone is stable specially because there are no sub-gingival connections creating inflammation.

CASE 4

CASE 4

 560345_3376718308337_1872898259_n  Patient with a hopeless root.
 66442_3376717828325_1546865923_n
 525813_3376711068156_1926176617_n
 535779_3376715588269_1786269479_n
 535221_3376717388314_1099151431_n
 534815_3376712228185_1339819265_n
 578419_3376715908277_1854747103_n Extraction of the root of the patient and same day implant placement.
 575215_3376714348238_1891051517_n  Good space for the future crown.
 486458_3972187794702_651041815_n
 318765_3972187954706_2026775146_n Day of cementing the crown.
 1000959_10201347688965799_1794319792_n-1  5 years after the surgery, the gum around the CeraRoot implant looks light-pink, whereas the area surrounding the titanium implant looks dark-pink/purple.

 CASE 5

CASE 5

 420922_3066362949647_902270065_n Initial situation
 397006_3066362589638_1526069386_n
 431283_3066360869595_1657738375_n 4 months after the surgery
 1891114_10202493007718052_1309938513_n  The xray on the right is 5 year follow-up.
 150344_4238794059692_1232067189_n  The gum around the implant and the all-ceramic crown is very stable after 5 years. NONE of the images describing this clinical cases have been modified with any software such as Photoshop.

 

The International Journal of Oral and Maxillofacial Implants (JOMI) has recently published the 5-year follow-up study of CeraRoot zirconia Implants .

Abstract:

Purpose: The aim of this study was to evaluate the 5-year success rate of zirconia (ZrO2) implants with three different kinds of surfaces.Materials and Methods:One-piece zirconia dental implants (CeraRoot) with three different roughened surfaces were designed and manufactured for this study: coated, uncoated, and acid-etched. Five different implant designs were manufactured. Standard or flapless surgical procedures were used for implant placement. Simultaneous bone augmentation or sinus elevation was performed when bone height or width was insufficient. Definitive all-ceramic restorations were placed 4 months after implant placement (8 months or more for implants when bone augmentation or sinus elevation was performed). The implants were followed up to 5 years (mean, 3.40 +/- 0.21). Results: In all, 831 implants were placed in 378 patients with a mean age of 48 years. The overall implant success rate after 5 years of follow-up was 95% (92.77% for uncoated implants, 93.57% for coated implants, and 97.60% for acid-etched implants). The success rate of the acid-etched surface group was significantly better than that of the other two. Conclusion: From this midterm investigation, it can be concluded that zirconia dental implants with roughened surfaces might be a viable alternative for tooth replacement. Further follow-up is needed to evaluate the long-term success rates of the implant surfaces studied. Int J Oral Maxillofac Implants 2010;25:336-344.

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Osseointegration of Zirconia (Y-TZP) Dental Implants: A Histologic, Histomorphometric and Removal Torque. Study in the Hip of Sheep. Download.

Abstract:

Objectives: The purpose of the present study was to demonstrate the biocompatibility and rigid osseointegration of a zirconia (Y-TZP) dental implant with acid-etched surface. Materials and methods: Eight zirconia (Y-TZP) implants (CeraRoot, Barcelona) were inserted in the hip of an adult sheep. The animal was sacrificed after 2 months. Four implants were used for histology and histomorphometric analysis, and the other four implants were used for removal torque test (RTQ). Results: The histological evaluation showed a direct bone to implant contact (BIC) with no signs of inflammatory or foreign body reaction. The histomorphometric analysis values ranged from 79.5 to 79.9% of BIC. The RTQ showed values ranging from 75 to 83 Ncm. Discussion: In this animal study, the biocompatibility of CeraRoot zirconia (Y-TZP) implants was demonstrated with the histologic observations of healthy bone tissue in direct contact with the zirconia (Y-TZP) implant surface. Moreover, the histomorphometric analysis and the RTQ confirmed a rigid fixation of the implant within the bone. Comparative studies with
acid-etched titanium implants are needed to further evaluate the characteristics of CeraRoot zirconia dental implants.

40x magnification of a CeraRoot 12 at 2 months post-surgery

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