If patients have suffered with Bruxism they will be asked if they have been wearing their night guard during their dental treatment.

This is a way of checking when the teeth are clenched how many generalized number of contacts there are between the two arches (i.e., how many teeth are in contact between the upper and lower jaw arches)

• Amount of cantilever from the most distal implant for the left side will be recorded in (mm)
• Amount of cantilever from the most distal implant for the right side will be recorded in (mm)

Survival will be evaluated in accordance with the ITI Treatment Guide Volume 8. Survival is defined as 'is the implant present in the mouth at the time of the assessment' (presence or absence).

Success will be evaluated in accordance with the ITI Treatment Guide Volume 8. Implants will be deemed to be successful if they are present:without implant fracture, without radiolucency changes from pre-treatment condition, without mobility, without pain, infection (suppuration, abscess and/or fistula), or paresthesia and without bone loss > 2mm.

Success will be evaluated according to the marginal bone resorption (bone loss). Evaluated using a conventional digital panorex xray and measured. The measurements will be performed on the mesial and distal aspects of the implant platform and the lowest value will be recorded.

Success will be evaluated according to the presence of Peri-implantitis (presence of inflamed mucosa with positive bleeding on probing and or suppuration ≥5mm and cumulative bone loss of ≥ 2mm and/or ≥3 threads of implant)

Success will be evaluated according to the Modified Plaque Index (mPI) will be evaluated by inserting a periodontal plastic probe 1 mm into the peri-implant sulcus running a circular movement all around the implant and measured in a scale between 0 to 3:

0 = no detection of plaque

1. = plaque only recognized by running a probe across the smooth marginal surface of the implant
2. = plaque can be seen by the naked eye
3. = abundance of soft matter

Success will be evaluated according to the Modified Bleeding Index (mBI) evaluated by inserting a periodontal plastic probe 1 mm into the peri-implant sulcus running a circular movement all around the implant and measured in a scale between 0 to 3:

0 = no bleeding when a periodontal probe is passed along the mucosal margin adjacent to the implant

1. = isolated bleeding spots visible
2. = blood forms a confluent red line on mucosal margin
3. = heavy or profuse bleeding

Success will be evaluated according to the Probing Depth. The depth of the peri-implant sulcus will be determined by measuring the distance from the mucosal margin to the base of the sulcus using a calibrated periodontal probe using minimal force (< 0.3M).

Success will be evaluated according to Soft Tissue Reactions. The presence or absence of oral mucosal disorders not related to peri-implant infection (e.g., reporting of allergic reactions, lichen planus) will be recorded.

Complications related to the implant include implant fracture, abutment/screw fracture and loosening will be reported.

Success will be evaluated in accordance with the ITI Treatment Guide Volume 8. JUVORA™ prosthesis will be deemed to be successful if they are present:

• without complications (fracture of the veneering material, framework fracture and loss of retention of the prosthesis)
• with adequate 'in-mouth comfort': using a grading system between 0 (poor) and 10 (excellent).
• with adequate function (chewing): Function is defined as the chewing ability of the patient to chew different food types (meat, fruit, vegetables, salad) using a grading system between 0 (poor) and 10 (excellent).
• with adequate aesthetics: Aesthetic examination including surface luster and staining, colour stability, translucency, and anatomic form.

Also Attachment Performance:

Attachment performance will involve examination and recording of any issues related to attachment performance (presence or absence).

Device Deficiency data collected:

1. Date deficiency occurred, if it could have led to a medical occurrence:

   if either a suitable action had not been taken or if intervention had not been made or if circumstances had been less fortunate

2. If could have led to a Serious Adverse Device Effect (SADE)?

Which is a serious adverse event according to one of the criteria below and device related:

Results in death Is life-threatening Requires inpatient hospitalisation or prolongation of existing hospitalisation Results in persistent or significant disability/incapacity (including a medical or surgical intervention to prevent life threatening illness or injury or permanent impairment to a body structure or a body function or permanent impairment to a body structure or a body function) Is a congenital anomaly/birth defect

Information collected will be as follows:

date and time of onset whether it is mild, moderate or severe. the frequency and the action taken.

If it is related to the device and if so, is it anticipated or serious and when or if it is resolved.

The reason for the additional dental procedure treatments will be collected along with the date and broken down under the following reasons:

Failed Implant Severe Bone Loss Loss of Attached Tissue